Thanks,
Looks like I'll be using raidz3.
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The only other zfs pool in my system is a mirrored rpool (2 500 gb disks). This
is for my own personal use, so it's not like the data is mission critical in
some sort of production environment.
The advantage I can see with going with raidz2 + spare over raidz3 and no spare
is I would spend
I'd like to thank Tim and Cindy at Sun for providing me with a new zfs binary
file that fixed my issue. I was able to get my zpool back! Hurray!
Thank You.
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Just curious if anything has happened here.
I had a similar issue that was solved by upgrading from 4GB to 8GB of RAM.
I now have the issue again, and my box hard locks when doing the import after
about 30 minutes. (This time not using de-dup, but was using iscsi). I debated
on upgrading to
Howdy All,
I made a 1 TB zfs volume within a 4.5 TB zpool called vault for testing iscsi.
Both DeDup and Compression were off. After my tests, I issued a zfs destroy to
remove the volume.
This command hung. After 5 hours, I hard rebooted into single user mode and
removed my zfs cache file (I
I should also mention that once the lock starts, the disk activity light on
my case stays busy for a bit (1-2 minutes MAX), then does nothing.
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I'm thinking that the issue is simply with zfs destroy, not with dedup or
compression.
Yesterday I decided to do some iscsi testing, I created a new dataset in my
pool, 1TB. I did not use compression or dedup.
After copying about 700GB of data from my windows box (NTFS on top of the iscsi
Are you using the SSD for l2arc or zil or both?
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Just l2arc. Guess I can always repartition later.
mike
On Sun, Jan 3, 2010 at 11:39 AM, Jack Kielsmeier
jac...@netins.net wrote:
Are you using the SSD for l2arc or zil or both?
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On Sun, 3 Jan 2010, Jack Kielsmeier wrote:
help. It is suggested not to put zil on a device
external to the
disks in the pool unless you mirror the zil device.
This is
suggested to prevent data loss if the zil device
dies.
The reason why it is suggested that the intent log
reside
That's the thing, the drive lights aren't blinking,
but I was thinking maybe the writes are going so slow
that it's possible they aren't registering. And since
I can't keep a running iostat, Ican't tell if
anything is going on. I can however get into the
KMDB. is there something in there
Yeah, still no joy on getting my pool back. I think
I might have to try grabbing another server with a
lot more memory and slapping the HBA and the drives
in that. Can ZFS deal with a controller change?
Just some more info that 'may' help.
After I upgraded to 8GB of RAM, I did not limit the
I got my pool back
Did a rig upgrade (new motherboard, processor, and 8 GB of RAM), re-installed
opensolaris 2009.06, did an upgrade to snv_130, and did the import!
The import only took about 4 hours!
I have a hunch that I was running into some sort of issue with not having
enough RAM
I should note that my import command was:
zpool import -f vault
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It sounds like you have less data on yours, perhaps that is why yours freezes
faster.
Whatever mine is doing during the import, it reads my disks now for nearly
24-hours, and then starts writing to the disks.
The reads start out fast, then they just sit, going at something like 20k /
second
Here is iostat output of my disks being read:
r/sw/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
45.30.0 27.60.0 0.0 0.60.0 13.3 0 60 c3d0
44.30.0 27.00.0 0.0 0.30.07.7 0 34 c3d1
43.50.0 27.40.0 0.0 0.50.0
One thing that bugged me is that I can not ssh as myself to my box when a zpool
import is running. It just hangs after accepting my password.
I had to convert root from a role to a user and ssh as root to my box.
I now know why this is, when I log in, /usr/sbin/quota gets called. This must
do
I still haven't given up :)
I moved my Virtual Machines to my main rig (which gets rebooted often, so this
is 'not optimal' to say the least) :)
I have since upgraded to 129. I noticed that even if timeslider/autosnaps are
disabled, a zpool command still gets generated every 15 minutes. Since
Just wondering,
How much RAM is in your system?
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I don't mean to sound ungrateful (because I really do appreciate all the help I
have received here), but I am really missing the use of my server.
Over Christmas, I want to be able to use my laptop (right now, it's acting as a
server for some of the things my OpenSolaris server did). This means
Ok, dump uploaded!
Thanks for your upload
Your file has been stored as /cores/redshirt-vmdump.0 on the Supportfiles
service.
Size of the file (in bytes) : 1743978496.
The file has a cksum of : 2878443682 .
Ah!
Ok, I will give this a try tonight! Thanks.
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Ok, I have started my import after using the -k on my kernel line (I just did a
test dump using this method just to make sure it works ok, and it does).
I have also added the following to my /etc/system file and rebooted:
set snooping=1
According to this page:
Ok, my console is 100% completely hung, not gonna be able to enter any commands
when it freezes.
I can't even get the numlock light to change it's status.
This time I even plugged in a PS/2 keyboard instead of USB thinking maybe it
was USB dying during the hang, but not so.
I have hard
Ok, this is the script I am running (as a background process). This script
doesn't matter much, it's just here for reference, as I'm running into problems
just running the savecore command while the zpool import is running.
the crash dump file by following these
instructions:
http://wikis.sun.com/display/supportfiles/Sun+Support+
Files+-+Help+and+Users+Guide
Let us know when you get it uploaded.
Thanks,
Cindy
On 12/15/09 00:25, Jack Kielsmeier wrote:
On Dec 15, 2009, at 5:50, Jack Kielsmeier
jac
Thanks.
I've decided now to only post when:
1) I have my zfs pool back
or
2) I give up
I should note that there are periods of time where I can ping my server
(rarely), but most of the time not. I have not been able to ssh into it, and
the console is hung (minus the little blinking cursor).
On Dec 15, 2009, at 5:50, Jack Kielsmeier
jac...@netins.net wrote:
Thanks.
I've decided now to only post when:
1) I have my zfs pool back
or
2) I give up
I should note that there are periods of time where
I can ping my
server (rarely), but most of the time not. I have
It's been over 72 hours since my last import attempt.
System still is non-responsive. No idea if it's doing anything
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My system was pingable again, unfortunately I disabled all services such as
ssh. My console was still hung, but I was wondering if I had hung USB crap
(since I use a USB keyboard and everything had been hung for days).
I force rebooted and the pool was not imported :(. I started the process off
My import is still going (I hope, as I can't confirm since my system appears to
be totally locked except for the little blinking console cursor), been well
over a day.
I'm less hopeful now, but will still let it do it's thing for another couple
of days.
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zpool import done! Back online.
Total downtime for 4TB pool was about 8 hours, don't
know how much of this was completing the destroy
transaction.
Lucky You! :)
My box has gone totally unresponsive again :( I cannot even ping it now and I
can't hear the disks thrashing.
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I have disabled all 'non-important' processes (gdm, ssh, vnc, etc). I am now
starting this process locally on the server via the console with about 3.4 GB
free of RAM.
I still have my entries in /etc/system for limiting how much RAM zfs can use.
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I have disabled all 'non-important' processes (gdm,
ssh, vnc, etc). I am now starting this process
locally on the server via the console with about 3.4
GB free of RAM.
I still have my entries in /etc/system for limiting
how much RAM zfs can use.
Going on 10 hours now, still importing.
I have disabled all 'non-important' processes
(gdm,
ssh, vnc, etc). I am now starting this process
locally on the server via the console with about
3.4
GB free of RAM.
I still have my entries in /etc/system for
limiting
how much RAM zfs can use.
Going on 10 hours now, still
Ah that could be it!
This leaves me hopeful, as it looks like that bug says it'll eventually finish!
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I waited about 20 minutes or so. I'll try your suggestions tonight.
I didn't look at iostat. I just figured it was hung after waiting that long,
but now that I know it can take a very long time, I will watch it and make sure
it's doing something.
Thanks. I'll post my results either tonight or
The pool is roughly 4.5 TB (Raidz1, 4 1.5 TB Disks)
I didn't attempt to destroy the pool, only a dataset within the pool. The
dataset is/was about 1.2TB.
System Specs
Intel Q6600 (2.4 Ghz Quad Core)
4GB RAM
2x 500 GB drives in zfs mirror (rpool)
4x 1.5 TB drives in zfs raidz1 array (vault)
The
It's been about 45 minutes now since I started trying to import the pool.
I see disk activity (see below)
What concerns me is my free memory keeps shrinking as time goes on. Now have
185MB free out of 4 gigs (and 2 gigs of swap free).
Hope this doesn't exhaust all my memory and freeze my box.
Ah, good to know! I'm learning all kinds of stuff here :)
The command (zpool import) is still running and I'm still seeing disk activity.
Any rough idea as to how long this command should last? Looks like each disk is
being read at a rate of 1.5-2 megabytes per second.
Going worst case,
The server just went almost totally unresponsive :(
I still hear the disks thrashing. If I press keys on the keyboard, my login
screen will not show up. I had a VNC session hang and can no longer get back in.
I can try to ssh to the server, I get prompted for my username and password,
but it
I just hard-rebooted my server. I'm moving off my VM to my laptop so it can
continue to run :)
Then, if it freezes again I'll just let it sit, as I did hear the disks
thrashing.
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Ok,
When searching for how to do that, I see that it requires a modification to
/etc/system.
I'm thinking I'll limit it to 1GB, so the entry (which must be in hex) appears
to be:
set zfs:zfs_arc_max = 0x4000
Then I'll reboot the server and try the import again.
Thanks for the continued
Upon further research, it appears I need to limit both the ncsize and the
arc_max. I think I'll use:
set ncsize = 0x3000
set zfs:zfs_arc_max = 0x1000
That should give me a max of 1GB used between both.
If I should be using different values (or other settings), please let me know :)
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Yikes,
Posted too soon. I don't want to set my ncsize that high!!! (Was thinking the
entry was memory, but it's entries).
set ncsize = 25
set zfs:zfs_arc_max = 0x1000
Now THIS should hopefully only make it so the process can take around 1GB of
RAM.
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Ok, I have started the zpool import again. Looking at iostat, it looks like I'm
getting compatible read speeds (possibly a little slower):
extended device statistics
r/sw/s kr/s kw/s wait actv wsvc_t asvc_t %w %b device
0.00.00.00.0
On Tue, Dec 8, 2009 at 6:36 PM, Jack Kielsmeier
jac...@netins.net wrote:
Ah, good to know! I'm learning all kinds of stuff
here :)
The command (zpool import) is still running and I'm
still seeing disk activity.
Any rough idea as to how long this command should
last? Looks like each
Howdy,
I upgraded to snv_128a from snv_125 . I wanted to do some de-dup testing :).
I have two zfs pools: rpool and vault. I upgraded my vault zpool version and
turned on dedup on datastore vault/shared_storage. I also turned on gzip
compression on this dataset as well.
Before I turned on
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