Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
> *From: *Gandalf Corvotempesta > *Sent: *Wednesday, 6 July 2016 16:28 > *To: *drbd-user at lists.linbit.com > *Subject: *[DRBD-user] nfs for VMs hosting > > > Anyone using drbd to export an high available volume with nfs for > virtual machine hosting? > > Currently i have 2 or 3 supermicro servers with 12 SAS 15k disks each. > I would like to use them as nfs server where store VM images > > Any suggestions? > Should i create a big raid10 with 12 disks? Multiple raid1 merged with > lvm? > A raid6? > > I'm open to suggestions. I need the maximum availability and data > protection > If you need maximum availability and data protection, why would you even ask about RAID6 ? You have 12 disks, the chance of losing *any* 3 disks in RAID6 is much higher than the chance of losing a pair of disks in RAID10 (IMHO). Also, if performance is a concern, then I'd also focus on RAID10. For maximum availability, I'd suggest to keep your stack as simple as possible, so don't include lvm if you don't need it, just use MD or hardware RAID. Your problem is that you probably want high performance, high availability, and data protection, and finally probably cost is a factor too. Getting all of that together will be a massive headache. You need to work out what your work-load is first (ie, large streaming read/write or small random read/write, for multiple VM's, most likely small random read/write). Then you need to run all your tests with that type of work load while you tune/test multiple configurations (eg, RAID10, RAID6, NFS server, iSCSI instead, etc...) as well as all the DRBD tuning, network tuning, etc... Hope that helps. Regards, Adam -- Adam Goryachev Website Managers www.websitemanagers.com.au -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20160707/4036f93f/attachment.htm>