Len Zaifman wrote:
We are looking at adding to our storage. We would like ~20TB-30 TB.
we have ~ 200 nodes (1100 cores) to feed data to using nfs, and we are
looking for high reliability, good performance (up to at least 350 MBytes
/second over 10 GigE connection) and large capacity.
For the X45xx (aka thumper) capacity and performanance seem to be there (we
have 3 now)
However, for system upgrades , maintenance and failures, we have an
availability problem.
For the 7xxx in a cluster configuration, we seem to be able to solve the
availability issue, and perhaps get performance benefits the SSD.
however, the costs constrain the capacity we could afford.
If anyone has experience with both systems, or with the 7xxx system in a
cluster configuration, we would be interested in hearing:
1) Does the 7xxx perform as well or better than thumpers?
Depends on which 7xxx you pick.
2) Does the 7xxx failove r work as expected (in test and real life)
Depends what your expectations are! The time to failover depends on how
you configure the cluster and how many filesystems you have and how many
disks etc etc.
Have a read over this blog entry:
http://blogs.sun.com/wesolows/entry/7000_series_takeover_and_failback
3) Does the SSD really help?
For NFS yes the WriteZilla (slog) really helps because of how the NFS
protocol works. For ReadZillia (l2arc) it depends on your workload.
4) Do the analytics help prevent and solve real problems, or arui?he ge they
frivolous pretty pictures?
Yes they do, at a level of detail no other storage vendor can currently
provide.
5) is the 7xxx really a black box to be managed only by the GUI?
GUI or CLI but the CLI is *NOT* a Solaris shell it is a CLI version of
the GUI. The 7xxx is a true appliance, it happens to be built from
OpenSolaris code but it is not a Solaris/OpenSolaris install. So you
can't run your own applications on it. Backups are via NDMP for example.
I highly recommend downloading the simulator and trying it in
VirtualBox/VMware:
http://www.sun.com/storage/disk_systems/unified_storage/
--
Darren J Moffat
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