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Disk I/O pacing
If you have 2 paths to each SAN, then you're in much better condition than doing the migration with just 2 paths total. You will need an equivalent number of disks (assuming a constant disk size, say 18GB) down the new SAN paths that you have down the old. Old Path: hdiskpower1 ... 3 New... -
fscsi# Device Is Busy When Hot Swapping an HBA
Yea, I could add a new card but I cannot pull this card out. The drslot command, which allows one to replace hot-pluggable cards, won't allow me to remove the card until it is in the Defined state. The only way to get fcs1 in a Defined state is to delete the fscsi1 device...hence my problem. -
Disk I/O pacing
I have seen something similar to system hang by doing copies, but was never able to conclusively determine how to fix it. BUT... If you are just migrating from 1 SAN system to another, why do any of it offline? Everything can be done online without the users ever knowing. If you have 2 (or... -
fscsi# Device Is Busy When Hot Swapping an HBA
/dev/fscsi1: vfs 0c(root) vfs 1c(root) vfs 139458c(root) vfs 188548c(root) vfs fd=0 372926(root) vfs 385212c(root) vfs 389356c(root) vfs fd=0 409796(root) vfs fd=0 413762(root) vfs... -
fscsi# Device Is Busy When Hot Swapping an HBA
In this case, here are the devices... fcnet1 Defined 06-08-01 Fibre Channel Network Protocol Device fcs1 Available 06-08 FC Adapter fscsi1 Available 06-08-02 FC SCSI I/O Controller Protocol Device I don't see anything hanging off of the fscsi1... -
fscsi# Device Is Busy When Hot Swapping an HBA
I have done this many times in the past without issues, but suddenly find myself not able to hot swap a failed HBA. Not sure whether I'm at fault, an AIX upgrade/patch or EMC upgrade/patch. Background: AIX 5300-03, p570 LPAR with 4 x HBA paths to EMC DMX800 (same SYMdevs down each of the 4...
