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November 11th, 2013 06:00
striped meta expansion
I performed a striped meta expansion over the weekend. the device was part of a SRDF pair. I had planned on performing a protected expansion on the R1 device and a unprotected expansion on the R2 device.
The protected expansion was successful:
symconfigure -sid 3938 -cmd "add dev 05da to meta 08fc,protect_data=TRUE,bcv_meta_head=065a;" commit
but I was unable to perform an unprotected expansion on the R2 device. It said it wasn't permitted.
symconfigure -sid 3923 -cmd “add dev 06dd to meta 0929,protect_data=FALSE;” prepare
I ran the process through EMC Chat on Friday and was told it should work. I think the process failed because in order to perform the expansion, I had to suspend the rdf group, and delete the pair relationship thus it wasn't sure if it was an R2 device anymore. Neither R1/R2 device is explicitly defined - they can both be R1/R2, depending on the direction.
symrdf -g sqlprod05v suspend
symrdf -sid 3938 -f 08fc.txt -rdfg 24 deletepair
Does this sound plausible? Is it possible to perform an unprotected striped meta expansion and if so, was my command wrong?
Thanks.
SYMCLIGuy
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November 11th, 2013 08:00
What was the specific error message did you get when trying to expand the R2 device?
Is the R2 device mapped to an FA by any chance? You can't expand a device while online without protecting the data.
JimK513
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89 Posts
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November 11th, 2013 09:00
Ahh, that makes sense - the R2 is mapped to an FA.
I suspect if I had write-disabled the device, I would have been able to perform a destructive expand.
I had to write disable the R2 anyways, when I re-created the pair relationship.
thanks.