What do you see as the pros and cons of using GPFS Native Raid and configuring your disk arrays as JBODs instead of using RAID in a box.
just this week we had an issue with bad disk (of the non-failing but disrupting everything kind) and issues with the raid controller (db of both controllers corrupted due to the one disk, controller reboot loops etc etc).
but tech support pulled it through, although it took a while. i'm amased what can be done with the hardware controllers (and i've seen my share of recoveries ;)
my question to ibm wrt gss would be: can we have a "demo" of gss recovering from eg a drawer failure (eg pull both sas connectors to the drawer itself). i like the gss we have and the data recovery for single disk failures, but i'm not sure how well it does with major component failures. the demo could be the steps support would take to get it running again (e.g. can gss recover from a drawer failure, assuming the disks are still ok ofcourse).
stijn
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