Dear All,
First of all thanks for a fascinating list - its my first read of the
morning.
Secondly I would like to ask a question. We currently have an EMC Celerra
NAS which we use for CIFS, NFS and iSCSI. Its not our favourite piece of
hardware and it is nearing the limits of its capacity (Tb) . We have two
options:
1) Expand the solution. Spend ???s, double the number of heads, double
the capacity and carry on as before.
2) Look for something else.
I have been watching ZFS for some time and have implemented it in
several niche applications. I would like to be able to consider using ZFS as
the basis of a NAS solution based around SAN storage, T{2,5}000 servers and
Sun Cluster.
Here is my wish list:
Flexible provisioning (thin if possible)
Hardware resilience/Transparent Failover
Asynchronous Replication to remote site (1km) providing DR cover.
NFS/CIFS/iSCSI
Snaps/Cloning
No single point of failure
Integration with Active Directory/NFS
Ability to restripe data onto "widened" pools.
Ability to migrate data between storage pools.
As I understand it the combination of ZFS and SunCluster will give me all of
the above. Has anybody done this? How mature/stable is it. I understand that
SunCluster/HA-ZFS is supported but there seems to be little that I can find
on the web about it. Any information would be gratefully received.
Best Regards,
Vic
--
Vic Cornell
UNIX Systems Administrator?
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Hello Vic,
Thursday, December 13, 2007, 10:29:57 AM, you wrote:
VC> Dear All,
VC> First of all thanks for a fascinating list - its my first read of the
VC> morning.
VC> Secondly I would like to ask a question. We currently have an EMC Celerra
VC> NAS which we use for CIFS, NFS and iSCSI. Its not our favourite piece of
VC> hardware and it is nearing the limits of its capacity (Tb) . We have two
VC> options:
VC> 1) Expand the solution. Spend ???s, double the number of heads,
double
VC> the capacity and carry on as before.
VC> 2) Look for something else.
VC> I have been watching ZFS for some time and have implemented it in
VC> several niche applications. I would like to be able to consider using ZFS
as
VC> the basis of a NAS solution based around SAN storage, T{2,5}000 servers
and
VC> Sun Cluster.
I''ve been using Cellera too - not that bad, but definitely not worth
$$$ in most cases.
I''ve been using SC+ZFS in a production for over a year now (first with
beta version). It works pretty good - I mean, it just works.
VC> Here is my wish list:
VC> Flexible provisioning (thin if possible)
VC> Hardware resilience/Transparent Failover
VC> Asynchronous Replication to remote site (1km) providing DR cover.
VC> NFS/CIFS/iSCSI
VC> Snaps/Cloning
VC> No single point of failure
VC> Integration with Active Directory/NFS
VC> Ability to restripe data onto "widened" pools.
VC> Ability to migrate data between storage pools.
VC> As I understand it the combination of ZFS and SunCluster will give me all
of
VC> the above. Has anybody done this? How mature/stable is it. I understand
that
VC> SunCluster/HA-ZFS is supported but there seems to be little that I can
find
VC> on the web about it. Any information would be gratefully received.
Not exactly...
All answers to your wish list is yes, with following
exceptions/notices
NFS - no problem at all, it will work with SC+NFS+ZFS
CIFS - if you''re happy with samba - then yes. If you are after Solaris
native client - well, it was just integrated into Nevada so if
you''re
happy with Nevada...
iSCSI - haven''t really use it, not in a production at least. By using
shareiscsi zfs property I guess it should work. I don''t think
there''s a special SC agent for it.
AD - not sure about samba
"Restriping data" - nothing automated yet. If you re-write data
manually then it should just work.
Migrate data between pools - not entirely online
Asynchronous replication - you can try AVS, I''ve never tried it.
Or you can go for zfs send -i
--
Best regards,
Robert Milkowski mailto:rmilkowski at task.gda.pl
http://milek.blogspot.com