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[01:53:48] <sross> Thinking through my disk layout. What are the downsides to using your boot mirror as a datastore (say my video & music collection)
[01:59:45] <sross> Also looking at my main datastore layout: starting w/ 5 disks. If I do 2x mirror's + 1 hotspare, does that then allow me more flexibility, and preferably less recovery time in case I need to do a scrub?
[02:00:06] <sross> in other words 2 sets of mirrors + 1 hotspare.
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[02:29:42] <jamesd_> mirrors are the fastest, and the hotspare adds a good layer of production
[02:29:50] <jamesd_> er protection
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[04:20:53] <victori_> hmm interesting no munin on nexentastor but NCP does have it
[04:47:54] <sross> jamesd_: I'm looking at a maximum of 9 discs, most likely 8.
[04:49:46] <sross> what's the advantage of 4 mirror sets over 2 raidz2 sets?
[04:54:42] <jamesd_> speed raidz2 are slow...
[04:55:20] <jamesd_> mirror or slghtly less redundant but, its really a bad day to have 2 drives in the same vdev to fail wirh mirrors
[05:04:19] <sross> so i'll get similar/better perf. both read & write most likely w/ 4x mirror's?
[05:04:45] <sross> the max I'll be looking at is really 8 drives in use
[05:04:56] <sross> for now it would be 4-6 drives
[05:08:23] <jamesd_> depending on your work load.. raidz2 could be quicker on reads.. but if you have a multithreaded/tasked workload... mirror  is usually faster especially for non sequential access
[05:08:52] <sross> yeah, this is a backend for my photography business
[05:08:59] <sross> so no multithreaded workload
[05:09:21] <jamesd_> take a few hours and try both... on your workload and use the best.
[05:09:33] <jamesd_> zfs makes proof of concepts really quick
[05:09:52] <sross> have a good link for doing that?
[05:10:03] <sross> haven't seen exactly what youre talking of on the wiki's so far
[05:10:19] <sross> I'm using NCE, not NCP
[05:10:39] <jamesd_> install nexenta.  create your pool with raidz2...   do some common tasks.. time the results,   destroy the pool do the same thing with a mirror 1+0 pool
[05:11:00] <sross> ok, that's something I can do
[05:11:17] <sross> I thought you were talking more along the iostat type stuff (i'm not familiar w/ the switches)
[05:11:22] <jamesd_> pool creation in either case will take 5 minutes or less
[05:11:48] <sross> I also have my boot/OS mirror
[05:12:04] <sross> can I use that for some light storage along w/ boot/OS?
[05:12:16] <sross> mp3's, home video, etc.
[05:13:15] <jamesd_> you can, but avoid it as much as possible... keep the backup process simple...  make a data pool all data goes in it.. and back it up.. worse case is you have to reinstall the OS... not reacreae some data that was on root/OS pool and forgot to backup
[05:14:32] <sross> I was hoping to have separate partitions on the boot/os mirror drives so that if it does come to an OS reload then I could just format/reinstall the OS partition
[05:15:26] <jamesd_> zfs loves full disks.. it works faster with whole disks.. disks are cheap.. add more later... keep data and OS seperate its the way the pros do it
[05:15:50] <jamesd_> er  full == whole
[05:17:33] <sross> hmm
[05:17:46] <sross> well I guess I could buy or add another IO card
[05:18:04] <sross> but I can get away w/ it temporarily?
[05:18:21] <jamesd_> you can add disk later... worst case you is you have to power it down to add the disks later...
[05:19:10] <jamesd_> you can mix OS and data termporarily... but is it the best way no...  but if nothing fails it will be fine.. performance may be less
[05:20:24] <sross> less is definitely relative here
[05:20:42] <sross> the only other 2x disks I have on hand are 2x 750GB
[05:20:50] <sross> way oversized for OS
[05:21:38] <jamesd_> but do you have suffient disk space for your data?
[05:21:45] <jamesd_> or are you just trying to be frugal
[05:22:18] <sross> well, the major disk space is for wife's photog biz
[05:22:23] <jamesd_> nexenta likes hiding the OS disks from you, so its slightly more difficult to get access to them
[05:22:28] <sross> i'd like to keep personal, home stuff separate
[05:22:58] <sross> but making that data available/moving it onto there, that's like step 5 in the process
[05:23:00] <jamesd_> just create a filesystem on your data pool for your  stuff...  you can create 100's of filesystems no problem at all its the way its designed to work
[05:23:32] <sross> now that I set it up w/ the 2x 750's previously, I just got 5x 2TB drives in for the photo biz
[05:24:21] <sross> so I'm reloading the thing from scratch to set it up correctly
[05:24:56] <sross> the boot/os is on an old 80GB single drive right now
[05:26:07] <jamesd_> are the wife's photo less than 4TB?
[05:26:26] <sross> right now yes, growing very fast
[05:26:41] <sross> pro photographer's burn through space
[05:27:25] <jamesd_> all the more reason to upgrade the storage to  3TB disks in 3-6 months...  and then take a pair of 2TB disks for your stuff
[05:27:49] <sross> the plan is to buy 1 more 2TB drive, and then I can use the 5th drive to create the 3rd part of that mirror (at that point it will be a total of 3x 2-disk mirrors)
[05:27:59] <sross> yup, the 3TB were too expensive right now
[05:28:18] <sross> mirrors do give me more flexibility when doing mirror's
[05:28:21] <jamesd_> i saw some for $200 each and are sure to go down in a few months
[05:28:47] <sross> yeah, I ended up going w/ $90 2TB disk
[05:29:17] <sross> Andys^ and I were talking about disk choices the other day
[05:29:21] <Andys^> yo
[05:29:34] <sross> didn't mean to prod you Andys^
[05:30:53] <sross> brb, snack time
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[15:49:31] <Chris64> hi
[15:50:06] <Chris64> gzip-6 zfs compression isn't that good for a 4x2,5GHz CPU, right? ;)
[15:50:35] <Chris64> it's blocking everything else from getting processed by the cpu :)
[15:54:03] <jamesd_> all depends on the mount of io you are doing...
[15:54:30] <jamesd_> i would stick with "on" setting if the filesystem is actively being used
[15:56:26] <Chris64> I'm evaluating at the moment (ZFSguru LiveCD for 4K alignment) and want to use nexentastor then if it goes productive (anyway just home nas ;))
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[15:59:42] <Chris64> compression of files after write is not possible right?
[16:00:12] <Chris64> so it's not possible to let the server compress the filesystem at night?
[16:20:27] <sross> Anyone know if I can install NexentaStor onto a single disk, and then turn it into a mirrored set later when I get another disk of same size?
[16:22:50] <Chris64> how can i list all network interfaces at the shell? ifconfig without arguments lists nothing
[16:23:23] <sross> ifconfig -a
[16:23:33] <sross> or possibly ifconfig *interface name*
[16:23:39] <sross> do you know the interface name?
[16:23:55] <Chris64> no :/
[16:24:12] <jamesd_> Chris64, ifconfig -a
[16:24:15] <Chris64> thank you :)
[16:24:35] <jamesd_> sross, you can convert single disk to mirror later
[16:24:42] <jamesd_> man zpool  ... /attach
[16:24:43] <sross> sweet!
[16:24:57] <sross> that *really* simplifies things!
[16:38:55] <Chris64> I'm trying to configure static ip but always get: SystemCallError: add net default: gateway 192.168.178.1: Network is unreachable
[16:39:18] <Chris64> changing the ip configuration at the webinterface doesn't help either
[16:39:59] <Chris64> any idea what's wrong? :/ dhcp works fine
[16:44:23] <jamesd_> what does ifconfig -a
[16:44:26] <jamesd_> return
[16:44:56] <Chris64> in dhcp mode?
[16:45:21] <Chris64> i'll setup static again, wait
[16:48:58] <Chris64> http://img695.imageshack.us/img695/1341/ifconfigh.png
[16:52:48] <Chris64> seems to be offline :/
[16:52:53] <Chris64> the interface
[16:55:01] <jamesd_> try  ifconfig e1000g0  up
[16:56:24] <Chris64> no reaction :/
[16:56:38] <Chris64> i'll try to reconfigure the route in nmc again
[16:58:44] <Chris64> nmc says: everything ok..
[16:59:06] <Chris64> oh
[16:59:07] <Chris64> works
[16:59:07] <Chris64> :D
[16:59:24] <Chris64> tried unconfigure before
[16:59:45] <Chris64> works :D
[17:28:18] <Darkman> hm, is there a way/need to filter packets arriving on the wrong interface? lets say i have 3 nics and i don't want to accept packets from network-nic1 to be accepted on nic2
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[18:01:24] <Chris64> anyone here who could help with share permissions? Though granted permissions I'm unable to store any data through cifs on that share :|
[18:03:38] <Chris64> I've changed all security policies required by nexenta's win7cifs document and see all rights granted in special permissions window on win7 but it won't let me store something there. do you have recommendations what I could do further?
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[18:11:23] <Chris64> err Oo
[18:11:32] <Chris64> with less permissions it works..
[18:12:05] <Chris64> strange, thank you for listening anyway :)
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   May 15, 2011  
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