A generous customer gave me an old Compaq 7 disk array and a single port UltraSCSI module to troubleshoot some RAID5 configurations, here are the switch options to set provided by Alex Daniels.
Module: DS-BA35X-FA is a Single port, single-ended UltraSCSI personality module
for BA356. Although these settings cover the single or dual
port(DS-BA35X-FB) variants.
It has two sets of switches as you have observed (S3 and S4).
S3 (SCSI Address switch) - When shelf bus address switches Read more...
raid5
All posts tagged raid5
Basic Commands
Checking status of drive/arrays, displaying all raids and basic information
# cat /proc/mdstat
Detailed status of array
# mdadm --detail /dev/md2
Creating raid device
# mdadm --create --verbose /dev/mdX --level=RAID5--raid-devices=2 /dev/sdj /dev/sdk
Stoping raid device
# mdadm --stop /dev/md2
Adding a drive:
# mdadm /dev/md2 -a /dev/sdm
Marking a drive as failed (This will break things if your not careful)
# mdadm --manage --set-faulty Read more...