Replacing a 7133-D40 Enclosure 1

[drencep]

Hi,

I'm researching on how to replace a 7133-D40 enclosure. Is this straightforward as pulling out the drives and installing them in the new enclosure and connecting back the correct cabling?

Thanks in advance!

 

[petertp6]

Why you want to do this?
Due to disks of 7133-D40 can only be used in 7133-D40/T40,
So I can not image what kind of situation you meet.
whole enclosure out of order?

It may be a risk to do what you said.
Because SSA adapter identify disks by enclosure ID and location code.
If you move disks to a new enclosure, SSA adapter may treat these disks as new disk, then .......I don't know.

If you still want to try this, I suggest you:
1.Full backup your data.
2.exportvg your_VG_on_SSA_disk and remove hdiskX from AIX.
3.move disks to SAME position of enclosure.
4.reconnetc cable to SAME connector.
5.Set new enclosure ID to old one.
6.cfgmgr new disk and importvg.

I think it will work, but I can not guarantee.
If you have to do this,
Why don't you use this chance to re-config disk and
restore data to improve I/O ?

 

[drencep]

Thanks for the reply Peter! I appreciate it. The reason why I want to replace enlosure is, there's so much failing disks on this enclosure. I can't find a document that indicates that the drives (36.4GB DMVC drives) installed in it have known manufacturing problem. If you have encountered this scenario before, I appreciate your tips. Thanks!

 

[petertp6]

If you just want to identify failed disk, you don't have to move disks to new enclosure.
You can use "smit ssadphys" to identify all disk one by one,
open 7133's front cover to see which disk does not respon (flash its' LED),
then you can know it is bad disk.
This action only light a led on disk, will not impact your system. You can do it any time.
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SSA Physical Disks

Move cursor to desired item and press Enter.

List All Defined SSA Physical Disks
List All Supported SSA Physical Disks
Add an SSA Physical Disk
Change/Show Characteristics of an SSA Physical Disk
Remove an SSA Physical Disk
Configure a Defined SSA Physical Disk
Generate an Error Report
Trace an SSA Physical Disk
Show Physical to Logical SSA Disk Relationship
List Adapters Connected to an SSA Physical Disk
List SSA Physical Disks Connected to an SSA Adapter
>>Identify an SSA Physical Disk
Cancel all SSA Disk Identifications
Show Connection Paths to an SSA Physical Disk
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But, if you got MANY bad disk, Do you mean your disk array or data has gone?