MSA 1000

[BIJI JOHN]

we have MSA1000 Controller storage with an expansion chassis. Each one of them contains 14 disks. We can access the first 21 drives (all 14 controller drives and 7 of the expansion chassis).
We need to access the remaining drives i.e. the next 7 drives in expansions chassis.

this 7 drives not to be vissible in ACU.

[Richard Tengdin]

Is your MSA30 a Single Bus or Dual Bus unit? If there are two VHDCI connections on the MSA30 I/O module you have a dual-bus unit and will need a 2nd SCSI cable between the MSA1000 and the MSA30.

If there is only one connection then try reseating the EMU on the MSA30.

[Andy_Stor]

Hi Biji,

MSA1000 has bot 4 channels, two for the internal disk shelf connected to controllers that the MSA1000 shelf, then its has got a dual port I/O module which can be cascaded to 2 MSA 30.

Now as per richards suggestion you need to verify whether the other MSA has got a dual port SCSI I/O module, if yes then you need to change it to single otherwise you won`t be able to access the 7 drives connecting to the second channel.

Andy

[BIJI JOHN]

thank you mr.andy and Mr. richard

mr. Andy how do we make it single i/o scsi, do we need to replace any thing or any other way

[Uwe Zessin]

You need to replace the whole I/O module.
The part number for the single bus one is: 287484-B21

Maybe you can find a used one or find somebody who is willing to trade.