search for: ptribble

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2007 Sep 13
11
How do I get my pool back?
...devid=''id1,sd at n600508e000000000feafea6b80e2b906/h'' whole_disk=0 metaslab_array=13 metaslab_shift=32 ashift=9 asize=448412778496 -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
2007 Sep 18
1
zfs-discuss Digest, Vol 23, Issue 34
...whole_disk=0 > > metaslab_array=13 > > metaslab_shift=32 > > ashift=9 > > asize=448412778496 > > > > > > -- > > -Peter Tribble > > http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/ > > > > > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070913/0b7d0682/attachment-0001.html > > ------------------------------ > > Mes...
2007 Jul 13
28
ZFS and powerpath
...e any way to fix this or are we going to have to start over? If we do start over, is powerpath going to behave itself or might this sort of issue bite us again in the future? Thanks for any help or suggestions from any powerpath experts. -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
2008 Jul 30
2
zfs_nocacheflush
...the internal drives, so I''m only using a partition and the drive''s write cache should be off, so my theory here is that zfs_nocacheflush shouldn''t have any effect because there''s no drive cache in use... -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
2007 Mar 22
13
migration/acl4 problem
Hi, S10U3: It seems, that ufs POSIX-ACLs are not properly translated to zfs ACL4 entries, when one xfers a directory tree from UFS to ZFS. Test case: Assuming one has an user A and B, both belonging to group G and having their umask set to 022: 1) On UFS - as user A do: mkdir /dir chmod 0775 /dir setfacl -m d:u::rwx,d:g::rwx,d:o:r-x,d:m:rwx /dir # samba would
2009 Feb 13
3
Strange performance loss
...h ACLs, and an ACL on the directory real 0.610 user 0.058 sys 0.551 I don''t know whether that explains all the problem, but it''s clear that having ACLs on files and directories has a definite cost. -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
2010 Dec 09
3
How many files & directories in a ZFS filesystem?
Looking for a little help, please. A contact from Oracle (Sun) suggested I pose the question to this email. We''re using ZFS on Solaris 10 in an application where there are so many directory-subdirectory layers, and a lot of small files (~1-2Kb) that we ran out of inodes (over 30 million!). So, the zfs question is, how can we see how many files & directories have been created in
2005 Mar 03
1
solaris 10 SMF setup?
Hello I'm in the process of putting SMB onto a dual Opteron x64 box running Solaris 10, with the SFW samba as supplied by Sun. I haven't found any hooks for this for the new SMF/SVC startup system, so I'm doing so now, but before I go any further, am I duplicating any efforts? Is anyone else doing this and has done it? At present I'm only starting smbd and nmbd (I never really
2005 Nov 23
14
ACL issues with ZFS
ZFS introduces a new and incompatible ACL interface into Solaris and this seems to be not yet fully completed in addition to the fact that is causes a lot of problems for software that needs to be compatible with Solaris-2.5 like star. Proof for incompatibility: create a file on UFS and set an ACL for this file. Use Sun tar cpf out file to archive this file. Unpack this archive file on ZFS
2011 Apr 25
3
arcstat updates
Hi ZFSers, I''ve been working on merging the Joyent arcstat enhancements with some of my own and am now to the point where it is time to broaden the requirements gathering. The result is to be merged into the illumos tree. arcstat is a perl script to show the value of ARC kstats as they change over time. This is similar to the ideas behind mpstat, iostat, vmstat, and friends. The current
2008 Jul 09
8
Using zfs boot with MPxIO on T2000
Here is what I have configured: T2000 with OBP 4.28.6 2008/05/23 12:07 with 2 - 72 GB disks as the root disks OpenSolaris Nevada Build 91 Solaris Express Community Edition snv_91 SPARC Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. Use is subject to license terms. Assembled 03 June 2008
2008 Aug 20
9
ARCSTAT Kstat Definitions
Would someone "in the know" be willing to write up (preferably blog) definitive definitions/explanations of all the arcstats provided via kstat? I''m struggling with proper interpretation of certain values, namely "p", "memory_throttle_count", and the mru/mfu+ghost hit vs demand/prefetch hit counters. I think I''ve got it figured out, but
2007 Apr 22
7
slow sync on zfs
Hello zfs-discuss, Relatively low traffic to the pool but sync takes too long to complete and other operations are also not that fast. Disks are on 3510 array. zil_disable=1. bash-3.00# ptime sync real 1:21.569 user 0.001 sys 0.027 During sync zpool iostat and vmstat look like: f3-1 504G 720G 370 859 995K 10.2M misc 20.6M 52.0G 0 0
2008 Feb 15
38
Performance with Sun StorageTek 2540
Under Solaris 10 on a 4 core Sun Ultra 40 with 20GB RAM, I am setting up a Sun StorageTek 2540 with 12 300GB 15K RPM SAS drives and connected via load-shared 4Gbit FC links. This week I have tried many different configurations, using firmware managed RAID, ZFS managed RAID, and with the controller cache enabled or disabled. My objective is to obtain the best single-file write performance.
2007 Oct 27
14
X4500 device disconnect problem persists
After applying 125205-07 on two X4500 machines running Sol10U4 and removing "set sata:sata_func_enable = 0x5" from /etc/system to re-enable NCQ, I am again observing drive disconnect error messages. This in spite of the patch description which claims multiple fixes in this area: 6587133 repeated DMA command timeouts and device resets on x4500 6538627 x4500 message logs contain multiple
2010 Aug 18
10
Networker & Dedup @ ZFS
Hi, We are considering using a ZFS based storage as a staging disk for Networker. We''re aiming at providing enough storage to be able to keep 3 months worth of backups on disk, before it''s moved to tape. To provide storage for 3 months of backups, we want to utilize the dedup functionality in ZFS. I''ve searched around for these topics and found no success stories,
2010 Feb 04
18
unionfs help
Is it possible to emulate a unionfs with zfs and zones somehow? My zones are sparse zones and I want to make part of /usr writable within a zone. (/usr/perl5/mumble to be exact) I can''t just mount a writable directory on top of /usr/perl5 because then it hides all the stuff in the global zone. I could repopulate it in the local zone but ugh that is unattractive. I''m hoping
2009 Mar 28
53
Can this be done?
I currently have a 7x1.5tb raidz1. I want to add "phase 2" which is another 7x1.5tb raidz1 Can I add the second phase to the first phase and basically have two raid5''s striped (in raid terms?) Yes, I probably should upgrade the zpool format too. Currently running snv_104. Also should upgrade to 110. If that is possible, would anyone happen to have the simple command lines to
2007 Sep 19
53
enterprise scale redundant Solaris 10/ZFS server providing NFSv4/CIFS
We are looking for a replacement enterprise file system to handle storage needs for our campus. For the past 10 years, we have been happily using DFS (the distributed file system component of DCE), but unfortunately IBM killed off that product and we have been running without support for over a year now. We have looked at a variety of possible options, none of which have proven fruitful. We are
2012 Jan 15
22
Does raidzN actually protect against bitrot? If yes - how?
"Does raidzN actually protect against bitrot?" That''s a kind of radical, possibly offensive, question formula that I have lately. Reading up on theory of RAID5, I grasped the idea of the write hole (where one of the sectors of the stripe, such as the parity data, doesn''t get written - leading to invalid data upon read). In general, I think the same applies to bitrot of