Hi,
Is there a single manual for Raid5+ASE configuration? Iam having a
question regarding this since I have taken the
HW with configuration from another person who already left the place.
We are having
an ASE cluster with a raid5 configuration.The machines X and Y are
connected with HSZ40 controller to a
raid5 disk array.The bus type is 16bit differential. In this array we
have 4 rows with each row having 6 disks.
The top row is having 5x4GB disks+Hot spare disk.The second and and rows
are having 2x6x9GB disks. The
bottom row is having 6x36.4GB disks. When I execute the command 'uerf -R
-r 300|more(the OS is 4.0D) I see the
following information in addition the other system info:
.
.
rz25 at scsi3 target 1 lun 0
(LID=6)
_(DEC SC4600-32 V34Z)
_(Wide16)
rz26 at scsi3 target 2 lun 0
(LID=14)
_(DEC SC4600-32 V34Z)
_(Wide16)
rz27 at scsi3 target 3 lun 0
(LID=22)
_(DEC SC4600-32 V34Z)
_(Wide16)
rz28 at scsi3 target 4 lun 0
(LID=30)
_(DEC SC4600-32 V34Z)
_(Wide16)
tcds1 at tc0 slot 3
.
.
rz25 refers to the bottom array and rz28 to the top array.
The 'ls -lR /etc/fdmns' gives the following output:
drwxr-xr-x 2 root system 8192 Sep 13 02:52 data_dom
drwxr-xr-x 2 root system 8192 Sep 13 02:52 progs_dom
drwxr-xr-x 2 root system 8192 Sep 13 02:52 proj_dom
/etc/fdmns/data_dom:
total 0
lrwxrwxrwx 1 root system 10 Sep 13 02:52 rz25c ->
/dev/rz25c
/etc/fdmns/progs_dom:
total 0
lrwxrwxrwx 1 root system 10 Sep 13 02:52 rz28c ->
/dev/rz28c
/etc/fdmns/proj_dom:
total 0
lrwxrwxrwx 1 root system 10 Sep 13 02:52 rz26c ->
/dev/rz26c
This shows that (rz27) the second row of disks from top is not defined
and also not used.Now I want to replace the
top array with 5x36GB disks.
1. What is the best way of doing this? Whether I have to destroy the
whole raid
configuration?
2. Whether I should do a full backup of all the FS(more than 200GB)? Or
I have to make backup
of only progs_dom FS(rz28c) which Iam replacing?
3. How can I add the top array after replacing to data_dom? (addvol
/dev/rz28c data_dom?) Whether I need any
in ASE table(Iam not familiar with ASE).
If possible please mention the answers in an order. So that I can
proceed according to that.
Many thanks for your kind suggestions.
Kumar
Received on Wed Sep 20 2000 - 13:36:35 NZST