Displaying 20 results from an estimated 2000 matches similar to: "zfs send/receive and compression"
2010 Jan 28
16
Large scale ZFS deployments out there (>200 disks)
While thinking about ZFS as the next generation filesystem without limits I am wondering if the real world is ready for this kind of incredible technology ...
I''m actually speaking of hardware :)
ZFS can handle a lot of devices. Once in the import bug (http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6761786) is fixed it should be able to handle a lot of disks.
I want to
2008 Jul 20
25
Formatting Problem of ZFS Adm Guide (pdf)
ZFS Administration Guide (in PDF format) does not look very professional (at least on Evince/OS2008.05). Please see attached screenshot.
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2011 Oct 04
6
zvol space consumption vs ashift, metadata packing
I sent a zvol from host a, to host b, twice. Host b has two pools,
one ashift=9, one ashift=12. I sent the zvol to each of the pools on
b. The original source pool is ashift=9, and an old revision (2009_06
because it''s still running xen).
I sent it twice, because something strange happened on the first send,
to the ashift=12 pool. "zfs list -o space" showed figures at
2009 Dec 02
10
Separate Zil on HDD ?
Hi all,
I have a home server based on SNV_127 with 8 disks;
2 x 500GB mirrored root pool
6 x 1TB raidz2 data pool
This server performs a few functions;
NFS : for several ''lab'' ESX virtual machines
NFS : mythtv storage (videos, music, recordings etc)
Samba : for home directories for all networked PCs
I backup the important data to external USB hdd each day.
I previously had
2010 Jan 19
5
ZFS/NFS/LDOM performance issues
[Cross-posting to ldoms-discuss]
We are occasionally seeing massive time-to-completions for I/O requests on ZFS file systems on a Sun T5220 attached to a Sun StorageTek 2540 and a Sun J4200, and using a SSD drive as a ZIL device. Primary access to this system is via NFS, and with NFS COMMITs blocking until the request has been sent to disk, performance has been deplorable. The NFS server is a
2009 Aug 23
23
incremental backup with zfs to file
FULL backup to a file
zfs snapshot -r rpool at 0908
zfs send -Rv rpool at 0908 > /net/remote/rpool/snaps/rpool.0908
INCREMENTAL backup to a file
zfs snapshot -i rpool at 0908 rpool at 090822
zfs send -Rv rpool at 090822 > /net/remote/rpool/snaps/rpool.090822
As I understand the latter gives a file with changes between 0908 and
090822. Is this correct?
How do I restore those files? I know
2010 Apr 12
5
How to Catch ZFS error with syslog ?
I have a simple mirror pool with 2 disks. I pulled out one disk to simulate a failed drive. zpool status shows that the pool is in DEGRADED state.
I want syslog to log these type of ZFS errors. I have syslog running and logging all sorts of error to a log server. But this failed disk in ZFS pool did not generate any syslog messages.
ZFS diagnosists engine are online as seen bleow.
hrs1zgpprd1#
2007 Jul 23
2
FLAC: editing software
yes I know I can do that, but my question is if there is software to edit
FLAC files without having to uncompress to WAV/recompress to FLAC.
2007/7/23, Avuton Olrich <avuton@gmail.com>:
>
> On 7/23/07, Harry Sack <tranzedude@gmail.com> wrote:
> > hi
> >
> > does somebody know software for editing FLAC files? So I just want to
> cut
> > some pieces
2009 Dec 17
4
NIS failover
We just updated our configuratiosn to have multiple NIS servers, when we
initiated a test of client failover, we were disapointed.
It seemed that the only way to get a filaover was to /etc/init.d/ypbind restart.
It behaves as indicated in
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=5084845 using
ypbind-1.17.2-13 on Centos 4.5 / Linux xxxxxxxxxxxx 2.6.9-55.0.12.ELsmp #1 SMP
Fri Nov
2009 Nov 11
20
zfs eradication
Hi,
I was discussing the common practice of disk eradication used by many firms for security. I was thinking this may be a useful feature of ZFS to have an option to eradicate data as its removed, meaning after the last reference/snapshot is done and a block is freed, then write the eradication patterns back to the removed blocks.
By any chance, has this been discussed or considered before?
2007 Feb 27
16
understanding zfs/thunoer "bottlenecks"?
Currently I''m trying to figure out the best zfs layout for a thumper wrt. to read AND write performance.
I did some simple mkfile 512G tests and found out, that per average ~ 500 MB/s seems to be the maximum on can reach (tried initial default setup, all 46 HDDs as R0, etc.).
According to http://www.amd.com/us-en/assets/content_type/DownloadableAssets/ArchitectureWP_062806.pdf I would
2010 Apr 26
23
SAS vs SATA: Same size, same speed, why SAS?
I''m building another 24-bay rackmount storage server, and I''m considering
what drives to put in the bays. My chassis is a Supermicro SC846A, so the
backplane supports SAS or SATA; my controllers are LSI3081E, again
supporting SAS or SATA.
Looking at drives, Seagate offers an enterprise (Constellation) 2TB 7200RPM
drive in both SAS and SATA configurations; the SAS model offers
2010 Mar 27
16
zpool split problem?
Zpool split is a wonderful feature and it seems to work well,
and the choice of which disk got which name was perfect!
But there seems to be an odd anomaly (at least with b132) .
Started with c0t1d0s0 running b132 (root pool is called rpool)
Attached c0t0d0s0 and waited for it to resilver
Rebooted from c0t0d0s0
zpool split rpool spool
Rebooted from c0t0d0s0, both rpool and spool were mounted
2008 Nov 14
23
Still more questions WRT selecting a mobo for small ZFS RAID
Like many others, I am looking to put together a SOHO NAS based on ZFS/CIFS. The plan is 6 x 1TB drives in RAIDZ2 configuration, driven via mobo with 6 SATA ports.
I''ve read most, if not all, of the threads here, as well as sbredon''s excellent article on building a home NAS, yet I still have a number of unanswered questions.
I was leaning heavily towards the M2N-E for a while,
2011 Feb 05
2
playback problems with oppo BDP-95
My friend somehow managed to get a BDP-95, even though the hardware
isn't scheduled to ship until March. The problem is that the manual
makes no mention of FLAC, at all, and only the web page claims to
support the format.
Playback of flac seems to work, but files from one online vendor work
flawlessly while files from other online vendors have strange
glitches that sound like a
2010 Jan 18
18
Is ZFS internal reservation excessive?
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
zpool and zfs report different free space because zfs takes into account
an internal reservation of 32MB or 1/64 of the capacity of the pool,
what is bigger.
So in a 2TB Harddisk, the reservation would be 32 gigabytes. Seems a bit
excessive to me...
- --
Jesus Cea Avion _/_/ _/_/_/ _/_/_/
jcea at jcea.es -
2007 Jul 23
1
FLAC: editing software
I just tried this with Goldwave.. it decoded the file,
i edited out some stuff, and saved the file (flac
format) and the tags appear to be intact.
Greg M.
--- Tomas Valusek <tvalusek@seznam.cz> wrote:
> Hello,
>
> and what if I want to preserve FLAC tags while I'm
> editing its contents?
> Is there a way e.g. to cut silent block from FLAC
> and preserve tags? By
2010 Apr 07
53
ZFS RaidZ recommendation
I have been searching this forum and just about every ZFS document i can find trying to find the answer to my questions. But i believe the answer i am looking for is not going to be documented and is probably best learned from experience.
This is my first time playing around with open solaris and ZFS. I am in the midst of replacing my home based filed server. This server hosts all of my media
2006 Aug 31
3
Find the difference between two snapshots
Hi everyone,
Is there an easy way to find out which files has changed between two
snapshots? Currently I''m doing a
# rsync -arvn <snapshot1> <snapshot2>
and it creates a list. But rsync needs to go through the whole
filesystem and compare files. It would be nice if zfs would have this
option builtin.
Regards,
Nickus
2009 Aug 25
41
snv_110 -> snv_121 produces checksum errors on Raid-Z pool
I have a 5-500GB disk Raid-Z pool that has been producing checksum errors right after upgrading SXCE to build 121. They seem to be randomly occurring on all 5 disks, so it doesn''t look like a disk failure situation.
Repeatingly running a scrub on the pools randomly repairs between 20 and a few hundred checksum errors.
Since I hadn''t physically touched the machine, it seems a