[zfs-discuss] Custom Jumpstart and RAID-10 ZFS rpool
Is it possible to create a custom Jumpstart profile to install Nevada on a RAID-10 rpool? From the ZFS Boot FAQ [1], you can create a profile to install Nevada with a RAID-1 rpool using the following line: pool newpool auto auto auto mirror c0t0d0s0 c0t1d0s0 Is there an equivalent line for RAID-10? I've tried using the following line, but the Jumpstart check script complains about it being invalid: pool newpool auto auto auto mirror c0t0d0s0 c0t1d0s0 mirror c0t2d0s0 c0t3d0s0 Thanks, Stephen Le [1] http://opensolaris.org/os/community/zfs/boot/zfsbootFAQ/#jumpinstall ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: ZFS Performance with Thousands of File Systems
(accidentally replied off-list via email, posting message here) We've already considered pooling user quotas together, if that's what you're going to suggest. Pooling user quotas would present a few problems for us, as we have a fair number of users with unique quotas and the general user quota is pretty small (10 MB), so we'd be worried about one account maxing out the pooled quota and denying mail for everyone else on the same file system. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: ZFS Performance with Thousands of File Systems
I think you will find that managing quotas for services is better when implemented by the service, rather than the file system. Thanks for the suggestion, Richard, but we're very happy with our current mail software, and we'd rather use file system quotas to control inbox sizes (our mail administrators are a bit hesitant to rely just upon the mail software). Is having a few thousand file systems still an issue with ZFS? I was under the impression this issue was resolved awhile ago (http://www.opensolaris.org/jive/message.jspa?messageID=68020#68020). If so, we'll just stick to UFS for now. Thanks. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS Performance with Thousands of File Systems
I'm investigating the feasibility of migrating from UFS to ZFS for a mail-store supporting 20K users. I need separate quotas for all of my users, which forces me to create separate ZFS file systems for each user. I had read that there were issues with slow boot times with thousands of ZFS file systems, but it seemed that a fix had been released with Solaris 10 U3. I just recently setup OpenSolaris b66 on a T2000 Logical Domain (4 VCPU, 4GB RAM, SAS-backed virtual storage) and created 50K file systems as a test, but I've found boot times to be very slow ( 5 hours) and operations on ZFS (ex., zfs set) to also be pretty slow. Has there been a regression, or do I need to set tuning factors (ex., in /etc/system)? We're currently have ZFS deployed for a near-line backup system with tens of millions of files, and it's working great, so we'd also like to move some of our other datasets to it. This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] ZFS RAID-10
Is it possible to construct a RAID-10 array with ZFS? I've read through the ZFS documentation, and it appears that the only way to create a RAID-10 array would be to create two mirrored (RAID-1) emulated volumes in ZFS and combine those to create the outer RAID-0 volume. Am I approaching this in the wrong way? Should I be using SVM to create my RAID-1 volumes and then create a ZFS filesystem from those volumes? This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
[zfs-discuss] Re: ZFS RAID-10
After some experimentation, it seems something like the following command would create a RAID-10 equivalent: zpool create tank mirror [i]disk1[/i] [i]disk2[/i] mirror [i]disk3[/i] [i]disk4[/i] This message posted from opensolaris.org ___ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
