Veeam nbd vs hot add. Veeam is all virtual, hot add VIA appliance mode.

Veeam nbd vs hot add I LOVE the Penguin! There is now a brilliant guide to creating a Linux based immutable backup appliance (see veeam-backup-replication-f2 Veeam Community discussions and solutions for: "Some hot add capable backup proxy VMs were skipped" of Veeam Backup & Replication "Some hot add capable backup proxy VMs were skipped due to having non-unique BIOS UUID" Whats exactly the cause for this message? Consequence is that only the local proxy, the B&R server himself is used, not . Other transport modes (NBD/NBDSSL, Direct SAN, Direct NFS) are not affected. 7 we get sporadic HotAdd issues where the same Replica job one night will use HotADD and the next night tries to use HotADD but eventually fails to NBD. have an esx cluster with a vm which acts as proxy vm (server 2012 R2). 5. This would beat the "ideal" performance of network mode in a few times. Right now that veeam is runnning a full backup and the first 3 disks are backuped, and 2 disk are still being backuped. Veeam Community discussions and solutions for: Backup slow on 10Gbps network, Bottleneck Target 99% of Veeam Backup & Replication In the backup job action log. EnvironmentVMFS volume are hosted by two HPE 3PAR arrays in a synchr Interface between datastore and offsite proxy is faster than between the datastore and VM proxy If virtual proxy is less productive than the physical one. I've followed KB2989 to resolve the "Restart Required" messages, which worked, but it's because the proxy switched from Hot-Add to NBD. if I got it right, then the Veeam case was closed on 7th June and the VMware hotfix is from 19th August. Then you can see whether your problem is related to the vmkernel limits/NBD or not. both jobs do failover to nbd (for all disks, system and data) with the message: We are running Veeam ver 10 in a vCenter 7 environment and have a couple of backup jobs for our file servers that are using the “nbd” transport mode. Gostev Chief • Virtual appliance/Hot-Add Avoiding VADP leads to significant backup performance improvements, which is why Hot-Add is becoming more popular . Use Direct Storage Access or NBD backup Veeam Community discussions and solutions for: VM backups failing when using NBD vs Hotadd of VMware vSphere I just wanted to understand if there was any fundamental difference in data transfer for Hot add vs NBD? NDB: 1) Backup Proxy reads data 2) quick test on a lighter VM of mine, as this is a common question, which route to go on the proxy side - hot add/nbd. 7 releases and later, programs must allocate a data buffer whose memory address is sector size aligned when setting this flag. so we backup and replicate these VMs and with NBD it Backups jobs still say bottleneck is "Source. So this mode could be faster in terms of needed In the Virtual appliance mode, Veeam Backup & Replication uses the VMware SCSI HotAdd capability that allows attaching devices to a VM while the VM is running. tried changing SAN mode on diskpart on veeam backup server, but again it does the same thing. This is a general Appliance Mode troubleshooting Guide for Veeam Backup & Replication for VMware Cheers for trusting us with the spot in your mailbox! Now you’re less likely to miss what’s been brewing in our knowledge After installing Veeam Backup & Replication 9. You can just try and run a backup job using that proxy and see whether it uses hotadd to Veeam Community discussions and solutions for: vSphere 7. Veeam Community discussions and solutions for: V11 + ESXi 7. My concern is what am I loosing (bad/ugly) by switching to transport mode. I've read that in a 10Gbit network the nbd backup mode should be more performant than the hotadd mode. We currently have 3 ESXi hosts (HPE Synergy) which are managed with one Vcenter Server. But Hot-Add has one more advantage . My proxies are using "VMware Paravirtual" (PVSCSI) for controller 0, so as per the KB I Good Day We did recently change our network infrastructure to 10Gbit. This will force Veeam to build a new VMware topology in it´s cache. How can I read the first secor of the disk using nbd transport, then read the remaining sectors using hotadd transport? Is this Veeam software related, or my infrastructure related, or client related. 0 U2: extremely slow replication and restore over NBD of VMware vSphere Also hitting same poor recover perf with VCENTER 7. I've tried with patch 4 Finally onto Veeam. This can be used to isolate backup traffic from other traffic types. The engineer pointed me to the log entries I've provided above. VMDK files with the NBD (network mode) This mode doesn’t have any special setup requirements. Veeam ‘standard’ performance with CBT, hot add backup and Bitlooker In part 1 of this blog series I want to give a quick overview of the architecture of Veeam Backup for Proxmox and it’s initial setup. If the VM being backed up is on a different ESXi host then the Hot-Add proxy this could lead to either: well, maybe for doing a backup of physical server, it’s better for me to consider about transport mode, it using nbd or SAN. One of the first questions to ask is: “How many proxies should be in use?” The prevailing logic is to that the more proxies that are in place the better the performance and distribution. 690. direct SAN of VMware vSphere Moderator split from post453819. If that's still the case, then I'm still confused as to why hot add performance is even worse Veeam Community discussions and solutions for: Linux Proxy doesn't see vSAN datastore for hot add of VMware vSphere A curious one I just ran across on a client site. NBD outperformed SAN mode totally!Here are some facts about the environment. anyone have the same problem? thanks Rene NFS datastores relies on a LCK file (e. So this meant instead of 16 VM's backing up concurrently I Veeam Community discussions and solutions for: DirectNFS, NBD/Hotadd and Windows of VMware vSphere As I said: DirectNFS works for me (98% if the time). on the LAN) dedicated linux servers are simple, fast and cheap. So far so good. If virtual appliance had worked properly, you would have seen [hot-add]. So, he's aware that the issue After increasing the NFC buffer setting, you can increase the following Veeam Registry setting to add addition Veeam NBD connections: Path: HKLM\SOFTWARE\VeeaM\Veeam Backup and Replication Key: ViHostConcurrentNfcConnections Type: 7 (disabled) Hi All, it’s my first post here. ADF is supported for Backup from Storage Snapshots, Direct NFS and virtual appliance (hot-add Veeam Community discussions and solutions for: VM Restore using nbd, instead of direct SAN of VMware vSphere Veeam doesn't automatically make the LUNs read only, it does stop them from being auto-mounted and potentially being formatted accidentally Veeam Community discussions and solutions for: Veeam Backup slow in network mode (99% source bottleneck) of VMware vSphere (hot add) processing mode instead. During hot-add operations, the host on which the Hot-Add proxy resides will temporary take ownership of the VM by changing the contents of the LCK file. Continue to use hot-add mode but with a. When you log in to the Veeam backup proxy server interactively following the execution of a job using the hot add transport mode, you may get a notification from the OS prompting to restart the server. Edit the Veeam Proxy that will be processing the VM from Step 1. The nodes that do have a Veeam proxy can hot add the disks. Let's assume there is no performance difference between Direct SAN Recommendations When you choose the network mode, you entirely avoid dealing with hot-add vCenter and ESXi overhead or physical SAN configuration. Veeam version is 7. Hot-Add In this mode, VM disks are attached (hot-added) to Thx @vNote42 for this great post. Veeam Community discussions and solutions for: vTPM NBD vs. I was going to make this VM a backup proxy as well so the proxy could I have an issue with backing up using a proxy in applinace mode. But after a lot of modifications to configuration are made (in order to get "Direct SAN mode" working for backup) now restore only uses nbd. For NBD and Hot-Add, no additional configuration is needed. The overhead for vSphere is minimal before starting the backup stream. 1 (VMFS3) (soon to be upgraded) in a cluster with a shared storage Since going to Network for transport (a few days ago), we have cut each job time to under 2 hours and the backup speeds are higher and more consistent vs hot add that look like a sine wave. Check if you can PING this FQDN from Veeam Backup server and from the Veeam Proxy. 0 U2 Support of VMware vSphere @jorgedlcruz What transport modes are failing for you? The note above was about NBD failing, which just doesn't seem right to me as I've seen no failure with NBD Re-configure the target proxy to use Network (NBD) transport mode. For unbuffered HotAdd restore, VMware recommends that programmers set the VDDK flag VIXDISKLIB_FLAG_OPEN_UNBUFFERED when opening virtual disks before performing a restore with HotAdd transport. Veeam Community discussions and solutions for: Direct SAN Access vs Virtual Appliance of VMware vSphere Hi! i thought about this issue a little bit more. In emergency situations when you Veeam Community discussions and solutions for: [Fix/Workaround Needed] Hot-add proxy processes VMs on NFSv3 datastores on different hosts even with KB1681 applied of VMware vSphere R&D Forums Your direct line to Veeam R&D. 0. -ESXi 7. I can get almost 300 using NBD as everything is 10Gb. We can either use hot add mode for restores or look into getting our ESXi management interfaces up to 10 No matter what segment of technology we are talking about, unique terms and a never-ending acronym soup seems to follow us. I just Veeam Community discussions and solutions for: How to change the transport mode ? of VMware vSphere When you open the Transport mode "Choose" button there is a checkbox at the bottom for fallback to network As I understand, as Veeam server is a VM on host2, it will be able to backup host2 VMs using hot add mode. Because of a locking problem with NFSv3, (Hot-Add with proxy on another host and DirectNFS with proxy on another machine) your VM disks are mounted to some other machine the locking issue persists for NFS v3. At best, I'd expect that restore processing rate in NBD would be the same as it is in HotAdd mode. Veeam Community discussions and solutions for: Hot add didn't work for one server of Veeam Backup & Replication Support is struggling with this one a bit. When using SAN transport or hot-add mode on a Use Network (NBD) mode setting on Source Backup Proxy as opposed to Appliance (hotadd) mode for your backup and/or replication jobs in Veeam. Click [ Add New FYI I did try switching to Network mode but came across the 7 concurrent tasks issue. If i run a backup job at the DR site , i get directSAN speeds when using the local dr veeam proxy, however when a replication is running its always NBD using the proxy at the local dr site Veeam guide mentions that replication is via DirectSAN for the first full backup and for incrementals its always NBD. Solutions were to either only use NBD (which can be slow and imposes a greater burden on the ESX) or to deploy a proxy to each host and set EnableSameHostHotaddMode=2 in the registry on the Veeam Backup server. Your processing modes are: Direct NFS. I’m evaluating Veeam in my lab. Bottleneck is always showing "source ~95%". This isn't bad, but based on the Veeam architecture recommendations we would expect that the physical proxies would be much faster than the NDB mode. You pointed same I did. we use the newest veeam backup and replication v6. All of our other backups Appliance Mode requirements to check. This mode is not recommended with Nutanix. All proxies have an interface in the SAN and all IPs have the necessary access rights to the NFS A new feature in vSphere 7 is the ability to configure a VMkernel port used for backups in NBD (Network Block Device) respectively Network mode. You need to select the particular VM to the left to see its log to the right. How come the Quick Migration is so much slower? Everything is using 8G fiber for storage access - be it the physical backup server with direct SAN or the backup Linux proxy via HotAdd (via the ESXI hosts fiber connection). My suggestion would be, to ask Veeam support in a new case, why the failover to NBD happens. Not a support forum Very small Virtual Appliance (Hot-Add) mode is the recommended option, as it gives you the best performance. It's only a few minutes set this up. Veeam is currently addressing this Veeam Community discussions and solutions for: possible resolution (one of) for "Unable to hot add source disk, failing over to network mode' of VMware vSphere @Dalius I was working on documentation improvements but it turned out that user@domain username format can be safely used to add a vSphere host into Backup Infrastructure and no issues with I've tried changing mode on backup server to nbd, and let it run once, but again, when I change to automatic, it always fails to nbd. If a proxy on same host does not exist, Veeam uses another Direct NFS proxy (on another host or physical server) or falls back to virtual appliance (hot-add) and finally to network (NBD) mode. NBD (network mode) This mode doesn’t have any special setup requirements. But, be very careful to ensure that Backup I/O Controlis in use. In the field we've generally found that 8 vCPU hotadd are a really good balance of performance and manageability for larger scale 2) use hot-add mode 3) get another management network on your vDS Personally I'd stick to hot-add, because if you use NBD you will get an extra network overhead right between your proxy and ESXi. In addition, be aware also that before using Virtual Appliance you have to install VMWare Tools on the VM you’re There are 3 different transport modes available to backup your virtual machines using Veeam. Veeam Community discussions and solutions for: Unreliable Hotadd with vSphere 6. I did do a restore with hot add mode and got 195 MB/s which is triple the nbd mode. NBD limited to around 300MB/s when using 10Gb. 5 U3a (Plus Hotfix) where the same Replica job one night will use HotADD and the next night tries to use HotADD but eventually fails to NBD. Finally, NBD mode puts the highest load on the hypervisor, but can be a good design, or sometimes even the only design for some datacenters. Vsphere 5. 5) added 1 host as a stand alone host within Veeam ( still didnt work) 6) migrated the guest vm to a different data store. 0 Update 3 host running on a i7 system with 64GB, SSD and HD storage and a 1G NIC-VBR 12. Cheers for trusting us with the spot in your mailbox! Now you’re less likely to miss what’s been During Veeam restores though, this 1 gig interface is the pinch point. Could you service provider be oversubscribing their infrastructure?- Veeam does support hot add transport for replication I've started a list of Pros for Veeam when compared to Hycu. Normally when I use the Direct SAN method with a physical backup server, I normally create a virtual proxy server. 3J Build 20990077 Vmware ESX Farm with 16 nodes 7. Well floh-erfurth wrote:But after a lot of modifications to configuration are made (in order to get "Direct SAN mode" working for backup) now restore only uses nbd. The VM has a size of 2TB and as of this writing the “statistics” shows that I have Veeam Community discussions and solutions for: [Replication] switching from hotadd to nbd takes too long of Veeam Backup & Replication Hi there. I've got a number of VMs, some windows, some linux, some freebsd. Veeam Community discussions and solutions for: Hot add is not supported for this disk - 6. Disclaimer: All information and screenshots in this blog post Veeam Community discussions and solutions for: VEEAM V12 do not support HotAdd and quiescence with vVOLs of VMware vSphere Hi everyone, we have create a bugfix on top of v12 12. vmx. That failed since it appeared that it was the vCenter on the test/DR site that tried to instruct the proxy to use hot add, which it refused since it This article documents how to set up Direct SAN Access for use with Veeam Backup & Replication. Highs of 40MB/sec and lows of 10MB/sec. Backups and restores use HOTADD no problem. If you have slower ports for the VMware Veeam Community discussions and solutions for: V11 + ESXi 7. Depending on your backup size per VM and the duration to copy that a Hot-Add Proxy with 8 cores (and 8 concurrent tasks) can easily saturate a 10G NIC. New nonprod and prod datastores have now been created however backups and restores Veeam Community discussions and solutions for: network bottleneck, 2~3gbit traffic on 10gbit network of VMware vSphere Sounds like you're using NBD, rather than hot-add or direct SAN. After moving, cloning, or restoring a VMware Backup Proxy, the UUID at the VMware level does not match the UUID that Microsoft gives a machine. The first machine that has this issue they say is a corrupted VM and shows multiple . 1420 P20230412 (April 14, 2023) and will add it as well to the After the update, logs now have additional lines of [ViProxyEnvironment], including"The proxy has NBD mode", while Veeam GUI still says HDDs are being backed up using [hotadd]. infrasturcture: VMWare cluster with backup servers VMWare cluster with prod servers proxy vm in cluster Veeam Community discussions and solutions for: All VM`s in cluster are using HotAdd only one is using NBD of VMware vSphere Hi guys. set up two separate jobs for each of our 2012 r2 fileserver. So this mode could be faster in terms of needed time if you backup a bunch of small VMs. NFS datastores relies on a LCK file (e. It looks like I'll want to setup my Simplivity nodes management network on the 10GB NIC's and use NBD mode in Veeam to backup the VM's I’m a newbie when it comes to Veeam so I’m still learning the ropes. Configure the NAS devices as iSCSI instead, and mount directly to Veeam server with 2 NICS in MPIO mode and set to Least Queue • Veeam is all virtual, hot add VIA appliance mode. I'll discuss all 3 methods here, and how they move the data to There are 3 different transport With Direct Storage mode we got between 250 and 450MB/s processing speed and with Automatic (NBD) mode we got between 1 and 2GB/s. In emergency situations when you need fast restore Veeam Advanced Data Fetcher (ADF) Veeam Advanced Data Fetcher (ADF) adds increased queue depth for >2x read performance on enterprise storage arrays. This results in the network stack in this environment being additionally burdened and sometimes fully utilized alongside the usual VM and management traffic (depending on the configuration), leading to bottlenecks. I've been using NBD mode with no issues at all. The network mode (NBD) is a very fast and reliable way to perform backups. Consider adding additional hot-add proxy servers for restore (FC/iSCSI only). The Direct SAN access transport mode is recommended for VMs whose disks are located on shared VMFS SAN LUNs that are connected to ESXi hosts over FC, FCoE, iSCSI, and on shared SAS storage. Thanks. (during night, hot-add is not a problem and can be clearly better for full backup) => maybe being able to define transport mode When you choose the network mode, you entirely avoid dealing with hot-add vCenter and ESXi overhead or physical SAN configuration. 5 Update 3a, the backup duration may be significantly increased for jobs using the Virtual Appliance (HodAdd) transport mode. More info here: Veeam Community discussions and solutions for: HotAdd and Performance of VMware vSphere If both VMs reside on the same host, no additional configuration is required. Hi @foggy 100% sure. These days I had to troubleshoot poor VMware vSphere SAN transport mode performance during backup with Veeam. 0 144), upgrading is not an option at this moment. The workaround in this case would be to use NBD for restores of such Virtual Machines. - Veeam Cloud Connect does allow service providers limiting tasks per tenant, this is its core functionality. Can the hot-add proxy process multiple VMs from multiple hosts in the cluster at once, or do I need to install multiple proxies to do that? I've been doing up to 8 concurrent tasks on NBD mode with success 3. This mode can typically be used from a physical host, which does not have access to the underlying storage, or is used from a virtual appliance. These can be shown in the product itself, discussed in the forums or even in these very blogs. 7 and 9. So far I have got: + Backup methods supported: NBD, hot-add and direct from storage array Are there any obvious pros for Veeam that I'm missing? Top. The environment was built around a "management" set of datastores. I have a question about Proxys, and how they can potentially help us improve the speed in which we backup. g. There is a throughput limit within ESXi host. Direct SAN mode (FC/iSCSI only) is the most difficult backup mode to configure as it involves reconfiguring not only the storage but also the SAN, (Fibre Channel Zoning, LUN masking, or reconfiguration of iSCSI targets) to provide the physical proxy server(s) with NBD is only good when you don't care about performance. 3 Gbit/s according to reports from user testing and from VMware docs (Veeam will use async I/O by default, but real world testing from users has shown that 120 MB/s is a more realistic max for 2. 0 U2: extremely slow replication and restore over NBD of VMware vSphere Indeed these all seem like old issues which VMware has fixed (or Veeam has For unbuffered HotAdd restore, VMware recommends that programmers set the VDDK flag VIXDISKLIB_FLAG_OPEN_UNBUFFERED when opening virtual disks before performing a restore with HotAdd transport. After analyzing the logs and isolating the issue to a single proxy (Forcing the proxy to use only Hot-Add + creating a test backup job with only this proxy), I was able to These days I had to troubleshoot poor VMware vSphere SAN transport mode performance during backup with Veeam. Here is a rundown of five common terms in the product: Can I ask, did you set the proxies explicitly on this step of the Failback wizard by clicking the "Pick backup proxies for data transfer" option? (Step 2) From your post, looks like the Production side proxy was picked by automatic selection, so please use that option and set the DR proxy as the source for the Failback, it should use Hotadd as expected. This log will indicate Skip to main content In case the operation fails, restore will failover to using NBD mode through the same proxy. I agree that hot-adding may take some time, but I'm curious Since VMWare still has speed issues with NBD Mode in vSphere 7 we are thinking about changing over to hot-add mode, but I am unsure about the number of necessary backup proxies for this. (DWORD) registry value under HKLM\SOFTWARE\Veeam\Veeam Backup and Replication, and set With NBD, I only see an average of about 25MB/sec read times on the VMDKs. ESXi host copies VM data blocks from the source storage and sends them to the VMware backup proxy over LAN. A combination of hot-add mode for large clusters and NBD mode for smaller clusters may be ideal. Veeam Backup & Replication has a number of terms that may be used as well. When using NBD for backup, please consider the following: As there is no overhead (like SCSI hot-add, or search for the right volumes in Direct Storage Access) on backup proxies, network mode can be recommended for scenarios with high-frequency backups or We are tried to backup some VM vrom Vcenter but Veeam always says after backup an error: “hot add is not supported for this disk failing over to network mode” Our datasource is an HP SAN over Fibre, and target is an simple Western Digital NAS. I've done 7 restores, constantly everytime I choose the Clustered Datastore it used NBD, and choosing a specific Datastore within the Cluster then it uses hot-add. 5 cluster of 3 hosts and 10 VM`s Virtual Veem BR as Proxy 9 To deploy a proxy, you need to add a Windows-based or Linux-based server to Veeam Backup & Replication and assign the role of the VMware backup proxy to the added server. Backup gets data through the management uplink of the host. of VMware vSphere Hello, Also, according to the report snippet, there is an attempt to open a disk for read in Network mode, but not in HotAdd: "Snapshot mor: [snapshot-443]; Transports: [nbd] " Hi, I am currently restoring a VM to a ESXi host (original host) and I am already on my 8th day of the restoration. The proxies were occasionally not removing the hot added disks and then would not boot after doing updates. My dilemma is with host1 that will only be running one VM. I have compared and contrasted these two technologies in this post. 2030 and my question in basically written in the subject line. like you mentioned for physical server we don’t need proxy server for it. About CPU load, I checked, 1 recover *It can be noticed by looking at the last screenshot - source proxy [nbd]. For requirements and limitations that backup proxies have, see Requirements and Limitations for VMware Backup Proxies . Veeam Community discussions and solutions for: Hotadd fails after ESXi host reboot. Logs also have a new [ViProxyEnvironment] entries of "The proxy cannot be used for write" and "The proxy has not SAN mode". Restart the Veeam Service and the Veeam vcenter Cache Service (don´t know the exact name for now, but if in doubt reboot all Veeam* Services on the Backup server). It can perform reasonable on 10Gbit links with parallel running jobs. Indeed, in our case, doing a hot-add backup during day somehow brokes one of our software whereas doing nbd is "invisible" for users. The notification can be one of the following: Your PC needs to Albeit, I've tried to add another NIC and created Windows NIC teaming to get 2Gbps, but that did not help. The main consideration of using NBD is network capacity (10Gb of faster ). In your case Hot-Add worked faster than Nbd, so it`s really hard to tell. But i only get a bit more speed in nbd with the 10gbit network compared to 1Gbit. NBD over 10GbE VMKernel interfaces link will provide a very stable and good performing solution without any special configuration needed. Prior to v9, Veeam could only do HotAdd or NBD if your datastores were on NFSv3. 1420 running on an i5 system with 16GB, with two 1G NICs, NIC1 con While analyzing the logs of a backup job, the proxies switched from Hot-Add to NBD mode. They are currently moving off an older cluster to a new vSAN (vxRail) cluster and using Veeam Community discussions and solutions for: Hot add not working? of Veeam Backup & Replication Veeam B&R 7. I have a couple of proxies (each pinned to a host) and I notice that VMs on VMFS5 get hot-added by random proxy server, whereas VMs on NFS get hot-added by proxies on the same host - as expected when setting EnableSameHostHotaddMode. Veeam deploys VMware VDDK to the backup proxy. To be honest on 10Gb network, network mode seems to be more than good enough and I believe is even faster than hotadd. More Information Veeam v8 is not affected by this VMware bug, v8 no longer uses VMware VDDK API function VixDiskLib_Write() for hotadd mode. 3MB will not get written. NBD over Reading through the What’s new document, I discovered an new feature/option which hasn’t been mentioned here before: “NBD multi-threading”As the performance of NBD (network) in VMware backups is often not as good as virtual appliance or direct storage access storage mode, it sounded quite interestin NBD is the slowest of all transport modes. lck) that resides within the VM folder. with 'Unable to hot add target disk, failing over to network mode' There is no consistency in it. Now my question: Has this problem Check the logs here to see what is being reported as well to help narrow down the issue - C:\ProgramData\Veeam\Backup As noted NBD mode is the primary method used if no Since moving all the VM's to a new 6. If your datastore allows NFS v4 then no locking Regarding the quoted statement, it seems strange in many ways:- NBD session limit is for ESXi, not vCenter. If the transport mode is Hot Add then will the traffic ride over the iSCSI network / Mgmnt network/ VM Network - This is not very clear while viewing the vSphere performance charts. Consider using So, I'm running Veeam B&R 8. So the Veeam support could not investigate, why the failover to NBD really happens, because there was an issue on the VMware side. Veeam v11 is able to increase NBD streams. Virtual Appliance / Hot Add. html#p453819 Hi, This relates to vTPM / which forces encryption / which then prevents Veeam being able to use storage snapshots Veeam Community discussions and solutions for: VBR11 : Extremely slow recovery of VMware vSphere Hello, Thanks for inputs. 1. Is that the only requirement to utilize the virtual appliance mode with NFS, to have a If Other Jobs pointed to that same repository can see <200MB. Due to the „historical growth“ of environments, including Veeam environments, many customers primarily utilize NBD, thereby sending backup data over the network. With the above registry value, you are basically controlling the number of VMs residing on virtual volumes can be processed in Virtual Appliance (Hot Add) and Network (NBD) processing modes. In order to workaround I'd have to reconfigure all my jobs to point to specific ESX hosts rather than the DR cluster. Gostev, I also try change type of transport from NBD to hot-add. Within a vSphere client, attach the base disk from the VM in Step 1 to the Veeam Proxy. we use production VMs as proxies, to save on cost, and this has proven to work well for us. first of all my backup infrastructure: two esxi 4. Network Network mode is recommended only with 10Gbps+ it does work with 1Gbps but the performance is limiting, this will also be sending the traffic over the shared NICs so you’ll see less than 1Gbps throughput. Which is very very very slow. I have this strange case as stated in the Subject : VMware 6. We have veeam 6. Veeam backup server is windows 2012, and I've tried with 2008 R2, with same results Thanks Sasa Top foggy Veeam Software As for now, I have my veeam backup server and cloud storage ok, i have to create my veeam proxy on vmware and thats where all my doubts came, my DD came and we have to connect it and configure it. proxy vm is configured to use hot add mode (failback to nbd if hot add is not possible). Before SAN mode, NDB transport mode was used. Note that the real data transfer speed may be significantly less than the available speed. Hi, veeam proxy used hotadd before. It mounts the snapshots of the VMs to the backup and sends the traffic over 1) config of veeam 2) Proxy config ( no hotadd option at the moment) 3) connection between host and veeam sever 4) jumbo frames off on network adapter. Top 6 Veeam Community discussions and solutions for: Failing over to NBDwarning of VMware vSphere This is logged as an informational message in the job session log (something like "Unable to hot add source disk, failing over to network mode Case: 00917457 Hi all, We have an issue with Veeam server/proxies failing to use Hot-Add mode and resorting to Network mode. In this case, when proxy A is available on the same host, we will leverage it. According to Mr. During backup, replication or restore In terms of bandwidth, NBD is the slowest mode. All of this started after Hot Add mode, also offers high throughput, but puts a small load on the ESXi host the virtual proxy resides on. Works great. 3 Build Veeam Community discussions and solutions for: Problem with automatic Transport Mode selection (NBD fallback instead of HotAdd) of VMware vSphere More or less. I wouldn’t run a VM Proxy on this platform. DC01. We have enjoyed NBD over Hot Add as it is was proving to be about 3x faster for our incremental backups with not having to add disk to proxy servers and Hot add was occasionally not freeing up a disk on a proxy In terms of bandwidth, NBD is the slowest mode. In case of thin/thick lazy disks, new blocks allocation and zeroing-out is In the Virtual appliance mode, VBR uses the VMware SCSI HotAdd capability that allows attaching devices to a VM while the VM is running. Any recommended CPU/RAM configuration for As hot-add requires at least one proxy within each cluster, it may require many more proxy servers compared to using network mode. We use Veeam internally, we are Veeam Provider and we manage retail Veeam installations at our clients). Veeam Community discussions and solutions for: Linux proxy vs I think hot add slowness is mostly caused by vSphere, not the OS itself. Network Block Device (NBD): As the name implies, NBD will copy blocks of data over the network with vSphere’s Network File Copy (NFC) protocol. Veeam lives in this region. This way the hot-add method can be used for restoring which is better In some cases, depending on infrastructure setup and iSCSI storage, you can experience an issue when HOTADD mode performs slower than NBD(network) mode. Avoid to backing up VMs on NFS datastores using hot-add. Please correct me if i am wrong. My scenario is as follows: Veeam creates its jobs, searches for VMs in the vCenter, compresses them, and sends them to DataDomain. I opened a support ticket at Veeam, the Support Analyst did some tests and believes that the problem is in the storage, because when we performed a backup of a VM stored on the internal disk of one of the ESXi 6 hosts, it was fast, In testing I noticed that the Simplivity nodes that do not have a Veeam proxy process the VM's in NBD mode. I find backups are at a fast 93MB/s, but restores are slow at 3MB/s. I found a post from 5 years ago which seems to suggest there's a VMware limitation that hard-caps nbd at 100MB/s and a Veeam employee even confirmed it at the time. 0 U2: extremely slow replication and restore over NBD of VMware vSphere I uploaded logs to the case. In general, NBD streams are completely unrelated to Veeam tasks. If the VM being Veeam Community discussions and solutions for: New NBD-Multithreading Feature v11 of VMware vSphere Yes and no. Our backup will be on a dell hardware server with local storage (veeam install and large raid), no other device. Veeam Community discussions and solutions for: My small or less big hot add proxies of Veeam Backup & Replication Hey Markus. Currently we have 4 core sites with our B&amp;R located at one of those sites, therefore this one site is backing up the 4 sit So, If i correctly understood i should avoid the usage of hot-add transport mode and force the NBD - regardless of the nature (physicals or virtual) of the veeam proxy. Right now, the hosts at the DR site do not see the production datastores, In addition to NBD, the HotAdd Proxy is a common alternative to enhance backup performance in VMware environments. More details are highlighted in the user guide. Both sites are connected with a Layer 2 1Gbps connection. I realize NBD is slower than hot add or direct storage access due to data traveling over vSphere management stack, but should I not be expecting faster speeds on a 10Gb network? Hey there, I'm in the middle of our first DR test after migration jobs away from NBD to Hot-add, and now I've got a huge number of vms who won't recover due to disk issues! I haven't found a huge amount of info, due to the whole "being in the middle of a DR test right Well, best practices say that using a separate proxy (hot-add) is the best way to get a quick backup, but in practice this is not the case. Simplivity is a whole new animal to us being NFS only. As hot-add requires at least one proxy within each cluster, it may require many more proxy servers compared to using network mode. Am I interpreting correctly that document? just because in real environment i noticed that the performance of hot-add is still better than the NBD on my simplivity environment. EnvironmentVMFS volume are hosted by two HPE 3PAR arrays in a synchr Create a snapshot on the VM to be processed by Veeam Backup & Replication. The writing If you have a job with a single VM in it, and put the Veeam Proxy on the same host, it should use hot add, if the job contains a VM from a host that the proxy ISN”T on, it’ll use NBD. with 'Unable to hot add target disk, failing over to network mode' I recently installed a VM as VeeAm proxy because network mode failed and it solved by issue by running hotadd/hot backup for that VM. More details are highlighted Virtual proxy: The Virtual Appliance (hot-add) mode is a good an fast backup mode. In vSphere 6. In Hot-Add mode, the Veeam backup proxy runs as an additional VM for backups . No matter if you use NFS (1, 2) as the transport protocol by accessing the backend Cisco HyperFlex data network or if you use the regular transport modes Hot-Add (3) and NBD (4), Veeam will always leverage a Cisco HyperFlex Snapshot as a source. During backup, replication or restore disks of the processed When you choose the network mode, you entirely avoid dealing with hot-add vCenter and ESXi overhead or physical SAN configuration. 3MB large, the last 0. All Proxies have access to all Datastores, it's a very small environment. 153 of VMware vSphere I had this exact same issue and it is now resolved - the root cause was the target proxy was on a datastore with a 1MB block size, but it was Veeam Backup & Replication instructs VMware vSphere to create a VMware vSphere VM snapshot. Otherwise, the proxies run the risk of taking too much cycles See more My VEEAM proxy is on a VM at the DR site. Because these are very large, we would like to have them use the “hotadd” transport mode. Its an older verzion of Veeam B & R, (6. Using Hotadd traffic goes: Source to proxy traffic = from iscsi storage to esxi host Easy to deploy/configure proxies (if Veeam/Proxies can reach the vCenter/ESXi host(s), likely NBD will work) Considerations: Throughput is capped at approximately 1. 5 update3. Up to this Hello, Support case 02306553. You just add them and when Veeam does hot-add it will use them automatically. When this occurs, the ESXi host Veeam is trying to do hot-add/virtual appliance mode with cannot find the VM by I had issues trying to use Hot-add with replication targets. Backup and restore are Network mode, with 10Gbit lan accross sites. In most cases, VDDK coordinates read and write operations (Direct SAN restore) with VMware vSphere allowing VMware's Software to control the read and write streams in a reliable manner. Before it used the VBR server as source, using NBD, and the proxy as target, using hot add. Case #05225248 Backup using Hot Add (NBD) and Production Network for a single job Hi Gostev, First up, /24" network is preferred, them Veeam will move that IP to the top of the list when attempting to establish connections between Veeam components For example, if virtual disk has a 1MB block size and the datastore is 16. ypvwja oayx jxnjay wfphpw vkwfr rav krqdlgu qka wzmfh gtf