similar to: space allocation vs. thin provisioning

Hi, I just had my Dell R610 reboot with a kernel panic when I threw a couple of zfs clone commands in the terminal at it. Now, after the system had rebooted zfs will not import my pool anylonger and instead the kernel will panic again. I have had the same symptom on my other host, for which this one is basically the backup, so this one is my last line if defense. I tried to run zdb -e

I have a huge problem with ZFS pool fragmentation. I started investigating problem about 2 weeks ago http://www.opensolaris.org/jive/thread.jspa?threadID=34423&tstart=0 I found workaround for now - changing recordsize - but I want better solution. The best solution would be a defragmentator tool, but I can see that it is not easy. When ZFS pool is fragmented then: 1. spa_sync function is

-----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 -

Deduplication was committed last night by Mr. Bonwick: > Log message: > PSARC 2009/571 ZFS Deduplication Properties > 6677093 zfs should have dedup capability http://mail.opensolaris.org/pipermail/onnv-notify/2009-November/010683.html Via c0t0d0s0.org.

Running a zpool scrub on our production pool is showing a scrub rate of about 400K/s. (When this pool was first set up we saw rates in the MB/s range during a scrub). Both zpool iostat and an iostat -Xn show lots of idle disk times, no above average service times, no abnormally high busy percentages. Load on the box is .59. 8 x 3GHz, 32GB ram, 96 spindles arranged into raidz zdevs on OI 147.

Has anyone worked with a x4500/x4540 and know if the internal raid controllers have a bbu? I''m concern that we won''t be able to turn off the write-cache on the internal hds and SSDs to prevent data corruption in case of a power failure. -- This message posted from opensolaris.org

if you have N processes reading the same file sequentially (where file size is much greater than physical memory) from the same starting position, should I expect that all N processes finish in the same time as if it were a single process? In other words, if you have one process that reads blocks from a file, is it "free" (meaning no additional total I/O cost) to have another process

I was wondering if it''s planned to give some control over the metaslab allocation into the hands of the user. What I have in mind is an attribute on a ZFS filesystem that acts as modifier to the allocator. Scenarios for this would be directly controlling performance characteristics, e.g. having system and application files being allocated on the inner side of the platter while pushing

Hey, A bit out of topic but I am looking for a micro server/pc if anyone knows a descent one... I found many nice NAS but I would like to have full access to the OS (install CentOS, etc). Dream one would be - Very quiet (fanless) since it will sit in my bedroom. - Headless - Small. - 2/3 HDs (2.5" are ok) for RAID1 (hardware RAID would be nice, and with BBC even more).- 1 or 2 GB NICs -

Hi, I read some articles on solarisinternals.com like "ZFS_Evil_Tuning_Guide" on http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide . They clearly suggest to disable cache flush http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide#FLUSH . It seems to be the only serious article on the net about this subject. Could someone here state on this

Hi, How difficult would it be to write some code to change the GUID of a pool? ---- Thanks Peter -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20080701/cf494cc1/attachment.html>

> ps: my little suggestion: if we add some parameters at smb.conf like > protected dir = /home/share, /home/user1 ; > trashcan dir = /smbtrash ; Such an addon to samba would make me weep tears of joy. The trashcan is a "security blanket" feature that Windows/MacOS/OS2/BeOS users now take for granted. Convincing them that this is now impossible because we've

Hey. I'm trying to move my existing MS-AD over to SAMBA, the place I'm working for is changing all servers from MS to Debian, but all the clients is still a mixed environment for now. We have MAC, *NIX, and Windows clients, so its imported that everything keeps running in the same or almost the same way as before the change but. When I try to join a Windows Vista Ultimate ore Windows

Hi Last week I had a lengthy thread in which someone indicated the my SIL card is a FRAID (don't know if F stands for the F word or Fake, though it doesn't really matter). I want to replace the controller with a controller that Linux will see the RAID1 group as a single HD and not multiple HDs as it happens with the SIL controller. Recommendations anyone? -- TIA Paolo --------------

Hi Gang, I recently rented a server at a datacenter with Centos 5.7 X64, Q9550 Processor, 8GB Ram, and dual 250GB SATA HDs (with 16mb cache). They had loaded it with KVM, and installed a 30-day trial of Virtualizor as the front-end for KVM. I was so impressed with how fasts the guests ran that I want to build a few of these machines for myself. I just installed one: same Q9550 processor, 4GB

I have 3 hds and one one hard drive I have my portable software I use for my windows xp and windows7, I also have my Diablo 2 LOD game on there, now is it posible to just copy/paste the programs I want into the wine dir and then make a launcher for those , I tried to do this but I get permission errors + errors like this one > Details: Failed to execute child process

Hello, I have looked into the various network attached storage devices and software based solutions. Can't really find one I like. Would it be possible to add a couple HDs to my existing 6.8 server and set them up as RAID drives? If so, how would I keep it from mirroring the system drive? Just spent$2500 on a transmission for my truck, so I broke right know and need to go the

Hello, I have several ~12TB storage servers using Solaris with ZFS. Two of them have recently developed performance issues where the majority of time in an spa_sync() will be spent in the space_map_*() functions. During this time, "zpool iostat" will show 0 writes to disk, while it does hundreds or thousands of small (~3KB) reads each second, presumably reading space map data from

Hello, 1) If i create a raidz2 pool on some disks, start to use it, then the disks'' controllers change. What will happen to my zpool? Will it be lost or is there some disk tagging which allows zfs to recognise the disks? 2) if i create a raidz2 on 3 HDs, do i have any resilience? If any one of those drives fails, do i loose everything? I''ve got one such pool and

Something seems to be wrong with my file systems, and I want to fsck everything. But I cannot. The setup consists of 2 hds, carrying 3 raid1 (ext3) file systems (boot, /, swap). OS is up-to-date CentOS 5. So I boot from CentOS 5.3 dvd in rescue mode, do not mount the file systems, and try to run fsck -y /dev/md0 fsck -y /dev/md1 fsck -y /dev/md2 For each try I get an error message: