I need to run HACMP mode 2. Using the new multi-LUN feature of the
7137, is it possible to define three LUNs of two disks, and then
define three vg (one for each LUN), each vg being accessed by a
different RS/6000? EVEN if the 7137 is configured in RAID-5? I have
6 disks in the 7137.
ANSWER
To AIX, 7137 LUNs are seen as regular hdisks. Therefore, you
can define multiple volume groups which can be owned by different
systems with no problems (even with RAID-5).
QUESTION :
Hi,
I need to run HACMP mode 2
Using the new multi-LUN feature of the 7137, is it possible to define
three LUNs of two disks, and then define three vg ( one for each
LUN ), each vg being accessed by a different RS/6000 ?
( I have 6 disks in the 7137)
EVEN if the 7137 is configured in RAID-5 ?
Thank you
ANSWER :
R: To AIX, 7137 luns are seen as regular hdisks. Therefore, you
can define multiple volume groups which can be owned by different
systems with no problems. ( Even with RAID-5 )
Thank you.
QUESTION :
Except for HACMP mutual takeover what is the interest for a
standalone
RS/6K for example of the multi LUN feature ?
Will I gain in performance ?
I understand that the RAID-5 technology is the same, and data and
parity stripped the same manner with and without multi LUn , am I
right?
Thank you
ANSWER
R: You are correct that performance will not be affected by using the
multi-lun feature with a single system. The only benefit from having
several luns and volume groups is data organization. All the apples
go in this volume group, all the oranges in that one, etc.
Thank you.
S e a r c h - k e y w o r d s:
7137 SHARED BETWEEN RS/6000'S
WWQA: ITEM: RTA000088452 ITEM: RTA000088452
Dated: 05/1996 Category: ITSAIHA6000
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