How to disable Ultra 45 disk spin down?
Hi.
I have a problem with my Ultra 45 workstations: the root disk seems to spin down when the system isn't used for a while, and then takes a few seconds to spin up before the system responds. I have experienced this in both Sol10 6/06 and Sol9 9/05.
This is from /var/adm/messages when disk is returning from sleep:
Nov 30 12:59:22 sun468 scsi: [ID 365881 kern.info] /pci@1e,600000/pci@0/pci@9/pci@0/scsi@1 (mpt0):
Nov 30 12:59:22 sun468 Rev. 2 LSI, Inc. 1064 found.
Nov 30 12:59:22 sun468 scsi: [ID 365881 kern.info] /pci@1e,600000/pci@0/pci@9/pci@0/scsi@1 (mpt0):
Nov 30 12:59:22 sun468 mpt0 supports power management.
Nov 30 12:59:22 sun468 scsi: [ID 365881 kern.info] /pci@1e,600000/pci@0/pci@9/pci@0/scsi@1 (mpt0):
Nov 30 12:59:22 sun468 mpt0: IOC Operational.
How can I disable this "feature"?
