Switching to XCP-NG, want to hear your problems
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@rfx77 said in Switching to XCP-NG, want to hear your problems:
Our three main problems are:
snapshots snapshots snapshots
just a pain on a thick lvm iscsi sr.
We switched from iSCSI to NFS and never looked back, the performance is pretty good, thin provisioning, snapshots coalescale pretty fast and life is good.
The setup is rather easy as well as there is no need to tweak the XCP's multipathing configuration. -
@rfx77 said in Switching to XCP-NG, want to hear your problems:
Our three main problems are:
snapshots snapshots snapshots
just a pain on a thick lvm iscsi sr.
Thin based SRs are recommended for a reason as they give better performance and also take up less storage space. You can get really good performance if using NFS 4.0 or higher (best when done using NFS 4.2 and using pNFS to its fullest extent).
With full flash storage target using NFS 4.2 and pNFS to its fullest extent and you'll have the capacity to benefit from features which have been developed, specifically to be paired with SSD storage.
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Also CBT might help to reduce the coalesce work needed in general.
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@john-c
NFS is no solution compared tu fast iSCSI Storage. To get in the performance-range of out ISCSI Flashsystem you have to buy Netapp which costs you three times as much.If you have to pay this much for a storage to get the same faetures as before you can stay on vmware.
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@rfx77 said in Switching to XCP-NG, want to hear your problems:
@john-c
NFS is no solution compared tu fast iSCSI Storage. To get in the performance-range of out ISCSI Flashsystem you have to buy Netapp which costs you three times as much.If you have to pay this much for a storage to get the same faetures as before you can stay on vmware.
Does your current storage support NFS?
If yes, you should give it a try and atleast benchmark it, maybe you'll be suprised. -
@rfx77 use cbt backups and no coalesce and snapshot issues anymore.
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@nikade No our current storage does not support nfs. but which enterprise grade-storage beside top end Netapp and Dell PowerStor really do??
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CBT is not supported wit CommVault
CBT is Beta in XOOther Backup vendors cannot compete when you have a broad spectrum of Agent needs.
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@rfx77 said in Switching to XCP-NG, want to hear your problems:
@nikade No our current storage does not support nfs. but which enterprise grade-storage beside top end Netapp and Dell PowerStor really do??
The TrueNAS storage products either the physical TrueNAS hardware products from iXSystems or using TrueNAS Scale download installation on a server of your own choosing. The recent release of TrueNAS Scale 24.04.2 is likely to really do well as SR for XCP-ng. It's performance is second to none and also will protect data integrity and also can do both SCSI and NFS.
https://www.truenas.com/truenas-scale/
https://www.truenas.com/f-series/
https://www.truenas.com/m-series/
https://www.truenas.com/r-series/ -
@john-c
I would not compare TrueNAS to IBM, HP, Dell, Netapp,... I have never seen this as a serious storage backend for VmWare or HyperV in a mission-critical environment. And today i have to say that you find this types of environmets in all customer sizes.
TrueNAS is also way more expensive than any IBM FlashSystem
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@rfx77 said in Switching to XCP-NG, want to hear your problems:
@john-c
I would not compare TrueNAS to IBM, HP, Dell, Netapp,... I have never seen this as a serious storage backend for VmWare or HyperV in a mission-critical environment. And today i have to say that you find this types of environmets in all customer sizes.
TrueNAS is also way more expensive than any IBM FlashSystem
Your rather mistaken as there's a wide variety of US Fortune 500 companies and the US Government which use TrueNAS in their organisations. Additionally Vates is using a TrueNAS instance in their infrastructure!
Also you don't have to use their hardware products you can roll your own TrueNAS by installing it on a compute server originally produced by another company.
https://www.truenas.com/virtualization/
https://www.truenas.com/clients/
https://www.truenas.com/case-studies/
https://www.truenas.com/h-series/ -
You sound a bit grumpy today @rfx77
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@rfx77 there are several other options, alike a3 is one good agentless solution that runs xcp-ng cbt backups. XOA is allready having in beta and is focussing on getting 100%, we run our backups on cbt and it seems to work allrwsdy very good. Coalesce with cbt is almost instant.
I know Nakivo is also planning on adding xcp-ng to there solution kn the near future. -
Sorry for that but i am fighting to tune and get backup right for nearly a week now and it is hard to find a real 100% solution.
the migration from vmware gives us lots of headaces because of tight storage space and the snapshot problematic -
CBT will be helpful for you, as @rtjdamen said
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@olivierlambert
Yes. Unfortunately i dont think that CommVault will add this feature if i request it. And from a bigger perspective where Xen is only on part of many there is no other option for us where we use it today.For smaller customers we are already evaluating XO with CBT for the VM backups + CommVault Agents in the VM (like others do with veeam)
But we are not entirely convinced that Xen will be our one-fits-all solution for our customers. maybe it will be a combination of hyperv and xenserver/xcp-ng
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@rfx77 said in Switching to XCP-NG, want to hear your problems:
@olivierlambert
Yes. Unfortunately i dont think that CommVault will add this feature if i request it. And from a bigger perspective where Xen is only on part of many there is no other option for us where we use it today.For smaller customers we are already evaluating XO with CBT for the VM backups + CommVault Agents in the VM (like others do with veeam)
But we are not entirely convinced that Xen will be our one-fits-all solution for our customers. maybe it will be a combination of hyperv and xenserver/xcp-ng
If you don't try asking (or requesting) CBT support of XCP-ng being added from CommVault then you won't know for sure (let alone get). They have support for CBT on other hypervisors, so thus they do have CBT support generally. Thus they just need to add support for CBT on XCP-ng (via XO) in CommVault products. Xen Orchestra has recently on XOA latest channel added CBT.
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@john-c
okay. you convinced me
i opened a support ticket with a feature request. I will keep you updated on this forum
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@rfx77 said in Switching to XCP-NG, want to hear your problems:
@nikade No our current storage does not support nfs. but which enterprise grade-storage beside top end Netapp and Dell PowerStor really do??
We're using Dell Powerstore 500T and 1000T and they both support NFS, tbh everything is beond expectation. Dedup, performance and reliability is great.
Before that we were using Nexentastor which were ZFS based and they supported both iSCSI and NFS.
I guess it all comes down to your infrastructure and what you have at hand - Not everyone can afford a Powerstore. -
@nikade
We were also evaluating Dell PowerStore, ME5 (We are Dell and IBM Partners) and Infortrend but all NFS options are simply much to expensive for 90% of our cutomers. We openly discussed it with our major customers which could efford it but they opted for iSCSI and bought just more SSDs. So on new projects we do not really have that much of a problem if we are careful.On existing customer installations where we have FibreChannel and iSCSI it is different Story.
But i am glad to hear some feedback what others are using and that they are using xen in mission critical environments. often it is not clear what usecase people have and if they are talking about homelab, small non critical systems or something like Oracle VMs, ERP VMs, so serious work.
Thanks
