similar to: Solaris 8/07 Zfs Raidz NFS dies during iozone test on client host

Hi all, Sorry for the offtopic question. I hope though that others on this list or reading the archive find the answers useful too. It seems the Adaptec 1405 4port SAS HBA I bought only works with RHEL and SuSE through a closed source driver, and thus is quite useless :-( I was stupid enought to think "Works with RHEL and SuSE" meant "Certified for RHEL and SuSE, but driver in

Hello List, I'm hoping someone else out there has an Asus DSBF-DE server board, and can tell me if anything special needs to be done to get ports 5 and 6 of the onboard SATA to work under Centos 5.1 x64. I have drives on 1 through 4 that are detected and working properly, however, a drive on 5 is not detected, from what i can tell, the kernel doesn't even see phy's for ports 5 and 6.

Hi all, Can anyone please steer me in the right direction with this one? I've searched the net, but couldn't find a clear answer. How do I actually generate graphs from iozone, using OpenOffice? Every website I've been to simply mentions that iozone can output an xls file which can be used in MS Excel to generate a 3D graph. But, I can't see how it's actually done. Can anyone

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I'm testing iozone inside a VM booted from a gluster volume. By looking at network traffic on the host (the one connected to the gluster storage) I can see that a simple iozone -w -c -e -i 0 -+n -C -r 64k -s 1g -t 1 -F /tmp/gluster.ioz will make about 1200mbit/s on a bonded dual gigabit nic (probably, with a bad bonding mode configured) fio returns about 50000kB/s, that are 400000 kbps.

Hello: Sorry for asking iozone ques in this mailing list but couldn't find any mailing list on iozone... In IOZone, is there a way to configure # of outstanding requests client sends to server side? Something on the lines of IOMeter option "Number of outstanding requests". Thanks a lot!

Hi, I am measuring the performance of my newly bought NAS with IOZone. The NAS is of an embedded linux with samba installed. (CPU is Intel Atom) The IOZone reported that write performance to be over 1GBps while the file size less or equals to 1GB. Since the nic is 1Gbps, the maximum speed is supposed to be 125MiBps at most. The testing report of IOZone is amazing. Later I found that If the

Dear ALL, IHAC who would like to use Sun Fire X4500 to be the NFS server for the backend services, and would like to see the potential performance gain comparing to their existing systems. However the outputs of the I/O stress test with iozone show the mixed results as follows: * The read performance sharply degrades (almost down to 1/20, i.e from 2,000,000 down to 100,000) when the

5-nodes server and 1 node client are connected by gigabits Ethernet. #] iozone -r 32k -r 512k -s 8G KB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 8388608 32 10559 9792 62435 62260 8388608 512 63012 63409 63409 63138 It seems 32k write/rewrite performance are very

Hi folks, I would appreciate it if someone can help me understand some weird results I''m seeing with trying to do performance testing with an SSD offloaded ZIL. I''m attempting to improve my infrastructure''s burstable write capacity (ZFS based WebDav servers), and naturally I''m looking at implementing SSD based ZIL devices. I have a test machine with the

Having done a current checkout, creating a new FS and running iozone [1] on it results in an oops [2]. remove_suid is called, accessing offset 14 of a NULL pointer. Let me know if you''d like me to test any fix, do further debugging or get more information. Thanks, Daniel --- [1] # mkfs.btrfs /dev/sda4 # mount /dev/sda4 /mnt /mnt# iozone -a . --- [2] [ 899.118926] BUG: unable to

I''ve a raidz1 made up of 2 partitions. One is on a disk which is failing and i want to replace it... cfgadm does not allow me to unconfigure it since ''device busy'', so i am trying to offline the slice from the raidz1 vdev but got this error: # zpool offline swap c3t2d0s0 cannot offline c3t2d0s0: no valid replicas given i have 2 partitions in this raidz1, i

Since ZFS already has error correction, would drives that limit the time a hard drive attempts to recover from errors such as WD RE drives or Seagate ES drive be necessary? Would it be safe to use standard hard drives without the Time Limited Error Recovery feature in a RAIDZ array? This message posted from opensolaris.org

Hi all! I got a short question regarding data migration: I want to copy my data (~2TB) from an old machine to a new machine with a new raidz1 (6 disks x 1,5TB each ). Unfortunately this is not working properly via network due to various (driver) problems on the old machine. So my idea was: to borrow one disk from the new raidz1 (leaving the raid in degraded, but working status) attach the now

Hello All, I have a zpool that consists of 2 raidz vdevs (raidz1-0 and raidz1-1). The first vdev is 4 1.5TB drives. The second was 4 500GB drives. I replaced the 4 500GB drives with 4 3TB drives. I replaced one at time, and resilvered each. Now the process is complete, I expected to have an extra 10TB (4*2.5TB) of raw space, but it''s still the same amount of space. I did an export and

Is it possible to build a raidz with different disk sizes? If so, are you limited to the size of the smallest disk (*ndisks)? -frank This message posted from opensolaris.org

Hi all, I currently have four drives in my OpenSolaris box. The drives are split into two mirrors, one mirror containing my rpool (disks 1 & 2) and one containing other data (disks 2 & 3). I''m running out of space on my data mirror and am thinking of upgrading it to two 2TB disks. I then considered replacing disk 2 with a 2TB disk and making a RAIDz from the three new drives.

Hi, I have E450 with 20 SCSI disks. 1 disk is used as a boot disk with critical filesystems like /, /usr, /var, etc. then othe 19 disks are configured with ZFS in raidz. Are there any significant performance implications of using raidz with such a large number of disks? Would there much to be gained in performance if I were to simply configure striping across those disks, instead of raidz? This

Will it be possible to update an existing raidz to a raidz2? I wouldn''t think so, but maybe I''ll be pleasantly surprised. -frank

Hello to the forum, with my general question about ZFS and RAIDZ I want the following to know: Must all harddisks for the storage pool have the same capacity or is it possible to use harddisks with different capacities? Many thanks for the answers. Best regards JueDan -- This message posted from opensolaris.org