Filesystem are cheap is one of ZFS's mottos. I'm wondering how far
this goes. Does anyone have experience with having more than 10.000 ZFS
filesystems? I know that mounting this many filesystems during boot
while take considerable time. Are there any other disadvantages that I
should be aware of?
The adage that I adhere to with ZFS features is just because you can doesn't
mean you should!. I would suspect that with that many filesystems the normal
zfs-tools would also take an inordinate length of time to complete their
operations - scale according to size.
Generally snapshots are quick
On Tue, May 31, 2011 at 6:08 AM, Gertjan Oude Lohuis
gert...@oudelohuis.nl wrote:
Filesystem are cheap is one of ZFS's mottos. I'm wondering how far
this goes. Does anyone have experience with having more than 10.000 ZFS
filesystems? I know that mounting this many filesystems during boot
On 31 May, 2011 - Khushil Dep sent me these 4,5K bytes:
The adage that I adhere to with ZFS features is just because you can
doesn't mean you should!. I would suspect that with that many
filesystems the normal zfs-tools would also take an inordinate length
of time to complete their operations
Gertjan,
In addition to the comments directly relating from your post, we have
had similar discussions previously on the zfs-discuss list.
If you care to go and review the list archives, I can share that we have
had similar discussions on at least the following time periods.
March 2006
May 2008
On Tue, May 31 at 8:52, Paul Kraus wrote:
When we initially configured a large (20TB) files server about 5
years ago, we went with multiple zpools and multiple datasets (zfs) in
each zpool. Currently we have 17 zpools and about 280 datasets.
Nowhere near the 10,000+ you intend. We are moving
On Tue, May 31, 2011 at 6:52 AM, Tomas Ögren st...@acc.umu.se wrote:
On a different setup, we have about 750 datasets where we would like to
use a single recursive snapshot, but when doing that all file access
will be frozen for varying amounts of time (sometimes half an hour or
way more).
On 05/31/2011 03:52 PM, Tomas Ögren wrote:
I've done a not too scientific test on reboot times for Solaris 10 vs 11
with regard to many filesystems...
http://www8.cs.umu.se/~stric/tmp/zfs-many.png
As the picture shows, don't try 1 filesystems with nfs on sol10.
Creating more filesystems
On 05/31/2011 12:26 PM, Khushil Dep wrote:
Generally snapshots are quick operations but 10,000 such operations
would I believe take enough to time to complete as to present
operational issues - breaking these into sets would alleviate some?
Perhaps if you are starting to run into many thousands
On May 31, 2011, at 2:29 PM, Gertjan Oude Lohuis wrote:
On 05/31/2011 03:52 PM, Tomas Ögren wrote:
I've done a not too scientific test on reboot times for Solaris 10 vs 11
with regard to many filesystems...
http://www8.cs.umu.se/~stric/tmp/zfs-many.png
As the picture shows, don't try
On 31 May, 2011 - Gertjan Oude Lohuis sent me these 0,9K bytes:
On 05/31/2011 03:52 PM, Tomas Ögren wrote:
I've done a not too scientific test on reboot times for Solaris 10 vs 11
with regard to many filesystems...
http://www8.cs.umu.se/~stric/tmp/zfs-many.png
As the picture shows, don't
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