similar to: Slow reads with ZFS+NFS

Hi guys, we are proposing a customer a couple of X4500 (24 Tb) used as NAS (i.e. NFS server). Both server will contain the same files and should be accessed by different clients at the same time (i.e. they should be both active) So we need to guarantee that both x4500 contain the same files: We could simply copy the contents on both x4500 , which is an option because the "new

The vendor wanted to come in and replace an HDD in the 2nd X4500, as it was "constantly busy", and since our x4500 has always died miserably in the past when a HDD dies, they wanted to replace it before the HDD actually died. The usual was done, HDD replaced, resilvering started and ran for about 50 minutes. Then the system hung, same as always, all ZFS related commands would just

Running an mmap-intensive workload on ZFS on a X4500, Solaris 10 11/06 (update 3). All file IO is mmap(file), read memory segment, unmap, close. Tweaked the arc size down via mdb to 1GB. I used that value because c_min was also 1GB, and I was not sure if c_max could be larger than c_min....Anyway, I set c_max to 1GB. After a workload run....: > arc::print -tad { . . . ffffffffc02e29e8

I am bumping this thread because I too have the same question ... can I put modern 3TB disks (hitachi deskstars) into an old x4500 ? If not, would the x4540 accept them ? -- This message posted from opensolaris.org

Every day we see pause times of sometime 60 seconds to read 1K of a file for local reads as well as NFS in a test setup. We have a x4500 setup as a single 4*( raid2z 9 + 2)+2 spare pool and have the files system mounted over v5 krb5 NFS and accessed directly. The pool is a 20TB pool and is using . There are three filesystems, backup, test and home. Test has about 20 million files and uses 4TB.

OK, so this may be a little off-topic, but here goes: The reason I switched to OpenSolaris was primarily to take advantage of ZFS''s features when storing my digital imaging collection. I switched from a pretty stock Linux setup, but it left me at one disadvantage. I had been using inotify under Linux to trigger a series of Ruby scripts that would do all the basic ingestion/setup for

After the interesting revelations about the X2100 and it''s hot-swap abilities, what are the abilities of the X2200-M2''s disk subsystem, and is ZFS going to tickle any wierdness out of them? -brian -- "The reason I don''t use Gnome: every single other window manager I know of is very powerfully extensible, where you can switch actions to different mouse buttons.

We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs ops of which about 90% are meta data. In hind sight it would have been significantly better to use a mirrored configuration but we opted for 4 x (9+2) raidz2 at the time. We can not take the downtime necessary to change the zpool configuration. We need to improve the meta data performance with little to no money. Does anyone

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

Ciao, the rot filesystem of my thumper is a ZFS with a single disk: bash-3.2# zpool status rpool pool: rpool state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 c5t0d0s0 ONLINE 0 0 0 spares c0t7d0 AVAIL c1t6d0 AVAIL c1t7d0

I''ve recently upgraded my x4500 to Nevada build 97, and am having problems with the iscsi target. Background: this box is used to serve NFS underlying a VMware ESX environment (zfs filesystem-type datasets) and presents iSCSI targets (zfs zvol datasets) for a Windows host and to act as zoneroots for Solaris 10 hosts. For optimal random-read performance, I''ve configured a single

While I understand everything at Oracle is "top secret" these days. Does anyone have any insight into a next-gen X4500 / X4540? Does some other Oracle / Sun partner make a comparable system that is fully supported by Oracle / Sun? http://www.oracle.com/us/products/servers-storage/servers/previous-products/index.html What do X4500 / X4540 owners use if they''d like more

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

Hi, just found on a X4500 with S10u6: fmd: [ID 441519 daemon.error] SUNW-MSG-ID: ZFS-8000-GH, TYPE: Fault, VER: 1, SEVERITY: Major EVENT-TIME: Wed Feb 11 16:03:26 CET 2009 PLATFORM: Sun Fire X4500, CSN: 00:14:4F:20:E0:2C , HOSTNAME: peng SOURCE: zfs-diagnosis, REV: 1.0 EVENT-ID: 74e6f0ec-b1e7-e49b-8d71-dc1c9b68ad2b DESC: The number of checksum errors associated with a ZFS device exceeded

This was previously posed to the sun-managers mailing list but the only reply I received recommended I post here at well. We have a production Solaris 10u5 / ZFS X4500 file server which is reporting NLM_DENIED_NOLOCKS immediately for any nfs locking request. The lockd does not appear to be busy so is it possible we have hit some sort of limit on the number of files that can be locked? Are there

Is ZFS efficient at handling huge populations of tiny-to-small files - for example, 20 million TIFF images in a collection, each between 5 and 500k in size? I am asking because I could have sworn that I read somewhere that it isn''t, but I can''t find the reference. Thanks, Brian -- - Brian Gupta http://opensolaris.org/os/project/nycosug/

Hi,all I did some test about MySQL''s Insert performance on ZFS, and met a big performance problem,*i''m not sure what''s the point*. Environment 2 Intel X5560 (8 core), 12GB RAM, 7 slc SSD(Intel). A Java client run 8 threads concurrency insert into one Innodb table: *~600 qps when sync_binlog=1 & innodb_flush_log_at_trx_commit=1 ~600 qps when sync_binlog=10

I look after an x4500 for a client and wee keep getting drives marked as degraded with just over 20 checksum errors. Most of these errors appear to be driver or hardware related and thier frequency increases during a resilver, which can lead to a death spiral. The increase in errors within a vdev during a resilver (I recently had three drives in an 8 drive raidz vdev "degraded")

I''m using Solaris 10u6 updated to u7 via patches, and I have a pool with a mirrored pair and a (shared) hot spare. We reconfigured disks a while ago and now the controller is c4 instead of c2. The hot spare was originally on c2, and apparently on rebooting it didn''t get found. So, I looked up what the new name for the hot spare was, then added it to the pool with "zpool

Hi, I just came across this box [0] (McKay Creek). Seems to be exceptional building material for ZFS based NAS/iSCSI unit. I especially liked the two extra system disks hidden inside the box ! Any one have an experience with these ? [0] http://www.intel.com/design/servers/storage/ssr212mc2 -- Regards, Cyril