On 01/19/2012 11:17 AM, Loke, Chetan wrote:
From: linux-scsi-owner@xxxxxxxxxxxxxxx
[mailto:linux-scsi-owner@xxxxxxxxxxxxxxx] On Behalf Of Tom Coughlan
Yes, Red Hat does. Tony Asleson. libStorageMgmt:
http://sourceforge.net/apps/trac/libstoragemgmt
The current focus is on managing external storage (SMI-S, etc.). This
focus can be expanded over time. Contributions welcome.
Device management(scalability/feature mgmt) -
1) scalability:
I may be wrong but storage boxes like symmetrix(and others) support
large number of LUNs.
So device management 'scalability' will make linux shine. By scalability
I mean efficiently managing let's say 32K(?) LUNs.
You can actually have (even more) luns than that for each array in a SAN. From a
host, you will probably not see all of the luns all of the time, but you
certainly need to have good support for a large lun address space that will be
sparsely populated.
2) feature management:
As Shyam mentioned in earlier emails - provide an ecosystem similar to
smart-phones. Let me provide an example(and then
you guys can correct me by saying this already exists or bits and pieces
exist):
a) As a kernel developer - export all the features(to the upper layers)
we can by querying the target.
b) As an app developer - GetLUNFeatures(), could return - {Thin
Provision, RAID-level, ... ).
c) As a sys-admin - If I right click(for a volume/LUN) on my management
GUI, I should be able to tell if my volume supports thin-prov, backed by
DRBD[proxy?] etc.
So once we provide b) from above, tens(if not hundreds) of apps will be
developed in a short period of time.
I feel libstoragemgmt is an excellent place to get all of this
organized.
Chetan Loke
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