I forgot about compression. Makes sense. As long as the zeroes find their way
to the backend storage this should work. Thanks!
Kind regards
JP
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Why should it?
Unless you do a shrink on the vmdk and use a zfs variant with scsi unmap
support (I believe currently only Nexenta but correct me if I am wrong) the
blocks will not be freed, will they?
Kind regards
JP
Sent from a mobile device.
Am 10.02.2013 um 11:01 schrieb "Datnus" :
> I
Hi,
OK then, I guess my next question would be what's the best way to "undedupe"
the data I have?
Would it work for me to zfs send/receive on the same pool (with dedup off),
deleting the old datasets once they have been 'copied'?
yes. Worked for my.
I think I remember reading somewhere that
Hi Edward,
From:
zfs-discuss-boun...@opensolaris.org<mailto:zfs-discuss-boun...@opensolaris.org>
[mailto:zfs-discuss-
boun...@opensolaris.org<mailto:boun...@opensolaris.org>] On Behalf Of Koopmann,
Jan-Peter
all I can tell you is that I've had terrible scrub rates when I u
Hi Karl,
Recently, however, it has started taking over 20hours to complete. Not much has
happened to it in that time: A few extra files added, maybe a couple of
deletions, but not a huge amount. I am finding it difficult to understand why
performance would have dropped so dramatically.
FYI th
Hi Timothy,
>
> I think that if you are running an illumos kernel, you can use
> /kernel/drv/sd.conf and tell it that the physical sectors for a disk
> model are 4k, despite what the disk says (and whether they really
> are). So, if you want an ashift=12 pool on disks that report 512
> sectors,
>
> What makes you think the Barracuda 7200.14 drives report 4k sectors?
http://www.mail-archive.com/zfs-discuss@opensolaris.org/msg48912.html
Nigel stated this here a few days ago. I did not check for myself. Maybe Nigel
can comment on this?
As for the question "why do you want 4k drives":
8/12 12:19 AM, Koopmann, Jan-Peter wrote:
>> Hi Carson,
>>
>>
>>I have 2 Sans Digital TR8X JBOD enclosures, and they work very well.
>>They also make a 4-bay TR4X.
>>
>>http://www.sansdigital.com/towerraid/tr4xb.html
>>http://www.sansdig
Hi Bob,
> On Mon, 18 Jun 2012, Koopmann, Jan-Peter wrote:
>>
>> looks nice! The only thing coming to mind is that according to the
>> specifications the enclosure is 3Gbits "only". If I choose
>> to put in a SSD with 6Gbits this would be not optimal. I
Hi Carson,
>
> I have 2 Sans Digital TR8X JBOD enclosures, and they work very well.
> They also make a 4-bay TR4X.
>
> http://www.sansdigital.com/towerraid/tr4xb.html
> http://www.sansdigital.com/towerraid/tr8xb.html
looks nice! The only thing coming to mind is that according to the
specificati
Hi Tim,
thanks to you and the others for answering.
> worst case). The worst case for 512 emulated sectors on zfs is
> probably small (4KB or so) synchronous writes (which if they mattered
> to you, you would probably have a separate log device, in which case
> the data disk write penalty may no
Hi,
my oi151 based home NAS is approaching a frightening "drive space" level. Right
now the data volume is a 4*1TB Raid-Z1, 3 1/2" local disks individually
connected to an 8 port LSI 6Gbit controller.
So I can either exchange the disks one by one with autoexpand, use 2-4 TB disks
and be happy.
Hi,
are those DELL branded WD disks? DELL tends to manipulate the firmware of
the drives so that power handling with Solaris fails. If this is the case
here:
Easiest way to make it work is to modify /kernel/drv/sd.conf and add an
entry
for your specific drive similar to this
sd-config-list= "WD
Hi Brandon,
On Mon, Mar 5, 2012 at 9:52 AM, luis Johnstone
mailto:l...@luisjohnstone.com>> wrote:
As far as I can tell, the Hitachi Deskstar 7K3000 (HDS723030ALA640) uses
512B sectors and so I presume does not suffer from such issues (because it
doesn't lie about the physical layout of sectors o
>
> On the Dell website I've the choice between :
>
>
>SAS 6Gbps External Controller
>PERC H800 RAID Adapter for External JBOD, 512MB Cache, PCIe
>PERC H800 RAID Adapter for External JBOD, 512MB NV Cache, PCIe
>PERC H800 RAID Adapter for External JBOD, 1GB NV Cache, PCIe
>
Hi,
my system is running oi148 on a super micro X8SIL-F board. I have two pools (2
disc mirror, 4 disc RAIDZ) with RAID level SATA drives. (Hitachi HUA72205 and
SAMSUNG HE103UJ). The system runs as expected however every few days
(sometimes weeks) the system comes to a halt due to these errors
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