The mirror positions in symmetrix are M1, M2, M3 and M4.

The mirror positions in symmetrix are  M1, M2, M3 and M4.  what are these call
As far as i know M4 is the BCV and M3 is the srdf however i am not sure what are M1 and M2
Please advice
faraz81116Asked:
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Duncan MeyersCommented:
M1, M2, M3, M4 are mirror devices, or local BCV devices. You can have up to 4 mirrors of a volume.

R1 and R2 describe SRDF devices (R=Remote). R1 is local, R2 is the remote target.
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Duncan MeyersCommented:
Thanks! Glad I could help.
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