similar to: dedup testing?

Displaying 20 results from an estimated 3000 matches similar to: "dedup testing?"

2010 Nov 29
9
Seagate ST32000542AS and ZFS perf
Hi, Does anyone use Seagate ST32000542AS disks with ZFS? I wonder if the performance is not that ugly as with WD Green WD20EARS disks. Thanks, -- Piotr Jasiukajtis | estibi | SCA OS0072 http://estseg.blogspot.com
2011 Jan 28
8
ZFS Dedup question
I created a zfs pool with dedup with the following settings: zpool create data c8t1d0 zfs create data/shared zfs set dedup=on data/shared The thing I was wondering about was it seems like ZFS only dedup at the file level and not the block. When I make multiple copies of a file to the store I see an increase in the deup ratio, but when I copy similar files the ratio stays at 1.00x. -- This
2010 Jan 27
13
zfs destroy hangs machine if snapshot exists- workaround found
Hi, I was suffering for weeks from the following problem: a zfs dataset contained an automatic snapshot (monthly) that used 2.8 TB of data. The dataset was deprecated, so I chose to destroy it after I had deleted some files; eventually it was completely blank besides the snapshot that still locked 2.8 TB on the pool. ''zfs destroy -r pool/dataset'' hung the machine within seconds
2009 Jun 16
2
dedup in dovecot?
Hi all Deduplicating data is not really a new thing, but quite efficient in mail systems where an email with an nMB attachment may be sent to multiple recipients. This might call for deduplicating data. Is there a way to do this, or is it far off? If I understand the system correctly, usually an MTA is calling dovecot on every single message, meaning the message itself won't
2010 May 15
7
Unable to Destroy One Particular Snapshot
Howdy All, I''ve a bit of a strange problem here. I have a filesystem with one snapshot that simply refuses to be destroyed. The snapshots just prior to it and just after it were destroyed without problem. While running the zfs destroy command on this particular snapshot, the server becomes more-or-less hung. It''s pingable but will not open a new shell (local or via ssh) however
2011 Mar 01
5
btrfs wishlist
Hi all Having managed ZFS for about two years, I want to post a wishlist. INCLUDED IN ZFS - Mirror existing single-drive filesystem, as in ''zfs attach'' - RAIDz-stuff - single and hopefully multiple-parity RAID configuration with block-level checksumming - Background scrub/fsck - Pool-like management with multiple RAIDs/mirrors (VDEVs) - Autogrow as in ZFS autoexpand NOT
2009 Feb 26
4
SXCE104, Cannot boot HVM domain
Hi, I cannot boot Windows XP domU on SXCE104 dom0. It was running for weeks.. Is it a known bug? # virsh start wxpp01 & # virsh dumpxml wxpp01 <domain type=''xen'' id=''-1''> <name>wxpp01</name> <uuid>fb96e8c9-940d-7e0a-12ef-f167a7f1102c</uuid> <os> <type>hvm</type>
2011 Apr 01
15
Zpool resize
Hi, LUN is connected to solaris 10u9 from NETAP FAS2020a with ISCSI. I''m changing LUN size on netapp and solaris format see new value but zpool still have old value. I tryed zpool export and zpool import but it didn''t resolve my problem. bash-3.00# format Searching for disks...done AVAILABLE DISK SELECTIONS: 0. c0d1 <DEFAULT cyl 6523 alt 2 hd 255 sec 63>
2008 Oct 15
4
Crossbow ISO download link broken ?
Hi, I was trying to download the Crossbow ISO from : http://opensolaris.org/os/project/crossbow/snapshots/ under "Crossbow Beta iso images June 6 2008" and it failed. Does anyone know of a link which is working ? Thanks for any pointers ! Regards, Sanjeev.
2009 Jan 21
2
win7 in xVM
Hi, Did anyone try to install Windows 7 beta within xVM? I tried that on SXCE105 but the Windows installer says me "STOP: 0x0000007E". -- Regards, Piotr Jasiukajtis | estibi | SCA OS0072 http://estseg.blogspot.com
2011 Apr 28
4
Finding where dedup''d files are
Is there an easy way to find out what datasets have dedup''d data in them. Even better would be to discover which files in a particular dataset are dedup''d. I ran # zdb -DDDD which gave output like: index 1055c9f21af63 refcnt 2 single DVA[0]=<0:1e274ec3000:2ac00:STD:1> [L0 deduplicated block] sha256 uncompressed LE contiguous unique unencrypted 1-copy size=20000L/20000P
2011 Nov 22
3
SUMMARY: mounting datasets from a read-only pool with aid of tmpfs
Hello all, I''d like to report a tricky situation and a workaround I''ve found useful - hope this helps someone in similar situations. To cut the long story short, I could not properly mount some datasets from a readonly pool, which had a non-"legacy" mountpoint attribute value set, but the mountpoint was not available (directory absent or not empty). In this case
2009 Dec 30
3
what happens to the deduptable (DDT) when you set dedup=off ???
I tried the deduplication feature but the performance of my fileserver dived from writing 50MB/s via CIFS to 4MB/s. what happens to the deduped blocks when you set dedup=off? are they written back to disk? is the deduptable deleted or is it still there? thanks -- This message posted from opensolaris.org
2012 Nov 14
1
GE LP Series?
Hi all We have a 100kVA GE LP Series UPS. I can't find this series in the HCL, but other GE UPSes are listed. Would it be possible to somehow use NUT with this UPS? -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 roy at karlsbakk.net http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det
2011 Jun 14
10
ZFS for Linux?
Hello, A college friend of mine is using Debian Linux on his desktop, and wondered if he could tap into ZFS goodness without adding another server in his small quiet apartment or changing the desktop OS. According to his research, there are some kernel modules for Debian which implement ZFS, or a FUSE variant. Can anyone comment how stable and functional these are? Performance is a
2010 Oct 16
4
resilver question
Hi all I''m seeing some rather bad resilver times for a pool of WD Green drives (I know, bad drives, but leave that). Does resilver go through the whole pool or just the VDEV in question? -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 roy at karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres
2011 Mar 16
3
GNU ''cp -p'' can''t work well with ZFS-based-NFS
Always show info like ''operation not supported''. Any workaround? Thanks. Fred -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20110316/2f58e589/attachment.html>
2010 Dec 05
4
Zfs ignoring spares?
Hi all I have installed a new server with 77 2TB drives in 11 7-drive RAIDz2 VDEVs, all on WD Black drives. Now, it seems two of these drives were bad, one of them had a bunch of errors, the other was very slow. After zfs offlining these and then zfs replacing them with online spares, resilver ended and I thought it''d be ok. Appearently not. Albeit the resilver succeeds, the pool status
2011 Mar 01
14
Good SLOG devices?
Hi I''m running OpenSolaris 148 on a few boxes, and newer boxes are getting installed as we speak. What would you suggest for a good SLOG device? It seems some new PCI-E-based ones are hitting the market, but will those require special drivers? Cost is obviously alsoo an issue here.... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 roy at karlsbakk.net
2014 Aug 21
1
Error Starting Samba
I got a copy of the latest samba build from the samba site, v4.1.11. I compiled and installed it with the default options on OpenIndiana 151.1.8. I previously had samba installed from the openindiana repository but this stopped working after my windows folks made security changes to AD. I suspect the older version of samba in the repo 3.5.21-0.151.1.8 lacks certain functionality to enable it to