Re: [gentoo-user] experiences with zfsonlinux?
Am Montag, 31. Dezember 2012, 09:07:04 schrieb Alan McKinnon: On Mon, 31 Dec 2012 04:42:45 +0100 Volker Armin Hemmann volkerar...@googlemail.com wrote: compared with the hours of fiddling when I started using raid this was pretty much straight forward - and yes, I know, destroying var was not necessary, but at that point I just wanted to try it... as I said, way too easy to throw away everything. If it's any comfort, rm -rf fdisk are just as easy to type :-) yeah, but with fdisk I have to make changes AND save them, with lots of warnings. destroy on the other hand... just destroys I suppose the zfs tools fall in that category of for root use ONLY and need to be protected like the root account itself. Great power/great responsibility and all that first thing I did, was changing permissions of zpios. ;) -- #163933
Re: [gentoo-user] experiences with zfsonlinux?
I think it's a bug, but zfs mount -a works around it quickly. On Sun, Dec 30, 2012 at 7:42 PM, Volker Armin Hemmann volkerar...@googlemail.com wrote: one thing that baffled me was when I set the mountpoint for zfstank/var - and it was gone. ;)
Re: [gentoo-user] experiences with zfsonlinux?
Hi everybody, so I did it. Three disks as a raidz pool, (zfstank), and created zfstank/var and zfstank/data Set both mountpoints as legacy and put them into fstab - I know I could zfs deal with that, but I feel more comfortable that way. Restoring all the data from backup took a long time, but not as long as doing the backup in the first place. Write rate was, most of the time, impressive. In fact, so far it was a really painless experience. There was a hard lockup - and zfs recovered nicely. But it doesn't seem to react to 'sync' is that true or just a feeling? Glück Auf, Volker -- #163933
Re: [gentoo-user] experiences with zfsonlinux?
Am 30.12.2012 15:07, schrieb Volker Armin Hemmann: Set both mountpoints as legacy and put them into fstab - I know I could zfs deal with that, but I feel more comfortable that way. Howdy Volker, that's a good idea. For some reason - with the latest sys-fs/zfs upgrade (0.6.0_rc13) - I found that both of my zfs file systems (single pool) do not get mounted at boot time automatically. This worked fine up until now. I'll look into that in the new year, right now, I'm on vacation :)
Re: [gentoo-user] experiences with zfsonlinux?
Am Sonntag, 30. Dezember 2012, 15:22:58 schrieb Michael Hampicke: Am 30.12.2012 15:07, schrieb Volker Armin Hemmann: Set both mountpoints as legacy and put them into fstab - I know I could zfs deal with that, but I feel more comfortable that way. Howdy Volker, that's a good idea. For some reason - with the latest sys-fs/zfs upgrade (0.6.0_rc13) - I found that both of my zfs file systems (single pool) do not get mounted at boot time automatically. This worked fine up until now. I'll look into that in the new year, right now, I'm on vacation :) one thing that baffled me was when I set the mountpoint for zfstank/var - and it was gone. ;) But seriously, setting up zfs was way easier than my first steps with mdraid + fitting a filesystem on it. It is different (just like office 2010 is easiert than 2003 but people complain because it is different) but a lot easier. I hope it stays that way. One thing that scares me: it is way too easy to throw away everything.. zpool history zsh: correct 'history' to '.history' [nyae]? n History for 'zfstank': 2012-12-29.23:47:49 zpool create -f -o ashift=12 zfstank raidz ata- Hitachi_HDS5C3020ALA632_ML4230FA17X6EK ata- Hitachi_HDS5C3020ALA632_ML4230FA17X6HK ata- Hitachi_HDS5C3020ALA632_ML4230FA17X7YK 2012-12-29.23:48:05 zfs create zfstank/var 2012-12-29.23:48:10 zfs create zfstank/data 2012-12-29.23:50:10 zfs set compression=on zfstank/var 2012-12-29.23:50:48 zfs set compression=on zfstank/data 2012-12-29.23:51:04 zfs set atime=off zfstank 2012-12-29.23:54:00 zfs set quota=100G zfstank/var 2012-12-30.00:04:16 zfs set mountpoint=/var zfstank/var 2012-12-30.00:08:00 zfs destroy zfstank/var 2012-12-30.00:08:35 zfs create -o quota=100G zfstank/var 2012-12-30.00:14:38 zfs set compression=on zfstank/var 2012-12-30.00:19:09 zfs set mountpoint=legacy zfstank/data 2012-12-30.05:55:17 zfs set mountpoint=legacy zfstank/var compared with the hours of fiddling when I started using raid this was pretty much straight forward - and yes, I know, destroying var was not necessary, but at that point I just wanted to try it... as I said, way too easy to throw away everything. -- #163933
Re: [gentoo-user] experiences with zfsonlinux?
On Mon, 31 Dec 2012 04:42:45 +0100 Volker Armin Hemmann volkerar...@googlemail.com wrote: compared with the hours of fiddling when I started using raid this was pretty much straight forward - and yes, I know, destroying var was not necessary, but at that point I just wanted to try it... as I said, way too easy to throw away everything. If it's any comfort, rm -rf fdisk are just as easy to type :-) I suppose the zfs tools fall in that category of for root use ONLY and need to be protected like the root account itself. Great power/great responsibility and all that -- Alan McKinnon alan.mckin...@gmail.com
[gentoo-user] experiences with zfsonlinux?
Hi, so in the Good/better/best filesystem for large, static video library? thread zfs was mentioned, since I just ordered 3 new hdd to replace the current 5 in my box (3 in raid5, 2 in raid1 configuration), I asked myself: instead of raid5+xfs or ext4 or whatever else that might be a sane solution, why not try zfs? But - there aren't so many first hand accounts on people using the spl+zfs kernel modules on linux. Anybody done it? Any caveats? -- #163933
Re: [gentoo-user] experiences with zfsonlinux?
Am 2012-12-28 18:52, schrieb Volker Armin Hemmann: Hi, so in the Good/better/best filesystem for large, static video library? thread zfs was mentioned, since I just ordered 3 new hdd to replace the current 5 in my box (3 in raid5, 2 in raid1 configuration), I asked myself: instead of raid5+xfs or ext4 or whatever else that might be a sane solution, why not try zfs? Sure, go ahead :-) But - there aren't so many first hand accounts on people using the spl+zfs kernel modules on linux. Anybody done it? Any caveats? I used it in a former server in my basement, right now the zfs-pool is out of order simply because I have no SATA-ports available right now (broken mainboard etc) It is the equivalent of a RAID1 mirror, 2 disks in a tank. As you may have researched already it is not necessary to partition the disks, back then it was recommended to create the pool/mirror by using the /dev/disk/by-id/ device-notation. That pool worked very well for me and even caught SATA-related errors with the occasional scrub-run here and then. I even was able to migrate that mirror from zfs-fuse to zfs-on-linux without any problems. As soon as I have a box with enough hdd-bays again I will re-import that pool for sure. Good luck, Stefan
Re: [gentoo-user] experiences with zfsonlinux?
Yeah, I use ZoL for my home server (mostly pictures, videos, and mp3s) and it works just fine. SSD for the / and /boot, and then ZFS for all the important data in a mirrored pool. Highly recommended. (Just updated to 3.7.1 kernel and 0.6.0-rc13 ZoL, with no issues, in case you were worried about usage with current pieces.) ScottE On Fri, Dec 28, 2012 at 12:29 PM, Stefan G. Weichinger li...@xunil.atwrote: Am 2012-12-28 18:52, schrieb Volker Armin Hemmann: Hi, so in the Good/better/best filesystem for large, static video library? thread zfs was mentioned, since I just ordered 3 new hdd to replace the current 5 in my box (3 in raid5, 2 in raid1 configuration), I asked myself: instead of raid5+xfs or ext4 or whatever else that might be a sane solution, why not try zfs? Sure, go ahead :-) But - there aren't so many first hand accounts on people using the spl+zfs kernel modules on linux. Anybody done it? Any caveats? I used it in a former server in my basement, right now the zfs-pool is out of order simply because I have no SATA-ports available right now (broken mainboard etc) It is the equivalent of a RAID1 mirror, 2 disks in a tank. As you may have researched already it is not necessary to partition the disks, back then it was recommended to create the pool/mirror by using the /dev/disk/by-id/ device-notation. That pool worked very well for me and even caught SATA-related errors with the occasional scrub-run here and then. I even was able to migrate that mirror from zfs-fuse to zfs-on-linux without any problems. As soon as I have a box with enough hdd-bays again I will re-import that pool for sure. Good luck, Stefan
Re: [gentoo-user] experiences with zfsonlinux?
Am Freitag, 28. Dezember 2012, 15:21:54 schrieb Scott Ellis: Yeah, I use ZoL for my home server (mostly pictures, videos, and mp3s) and it works just fine. SSD for the / and /boot, and then ZFS for all the important data in a mirrored pool. Highly recommended. (Just updated to 3.7.1 kernel and 0.6.0-rc13 ZoL, with no issues, in case you were worried about usage with current pieces.) I am conservative with kernels uname -a Linux localhost 3.4.24 #1 SMP Sun Dec 23 17:47:00 CET 2012 x86_64 AMD Phenom(tm) II X4 955 Processor AuthenticAMD GNU/Linux so that is not a concern of mine. I am more worried about stability. I plan to put /var and my data pile on it. While losing the first would be a time intensive incident losing the second would be really painful. Even with backups. But it would something I could recover from or I would not waste time thinking about zfs - mdadm+whatever fs does work good enough. Glück Auf, Volker -- #163933
