Technical data

Example 4-12: Displaying Information About the Storage Unit (cont.)
Disk103: Box 1, Bay 03, (SCSI bus 0, SCSI id 2) 9
Logical Volume Raid Level: MIRROR FAULT TOLERANCE (Raid 1) 10
stripe_size=128kB 11
Logical Volume Capacity : 2,047MB 12
MSA1000-1> SHOW UNIT 7
Unit 7:
In PDLA mode, Unit 7 is Lun 8; In VSA mode, Unit 7 is Lun 7.
Unit Identifier : 8
Device Identifier : 600805F3-000127E0-00000000-ACB70082
Cache Status : Enabled
Max Boot Partition: Enabled
Volume Status : VOLUME OK
Mirror Init Status: waiting for first write
4 Data Disk(s) used by lun 7:
Disk101: Box 1, Bay 01, (SCSI bus 0, SCSI id 0)
Disk102: Box 1, Bay 02, (SCSI bus 0, SCSI id 1)
Disk108: Box 1, Bay 08, (SCSI bus 1, SCSI id 0)
Disk109: Box 1, Bay 09, (SCSI bus 1, SCSI id 1)
Spare Disk(s) used by lun 7:
Disk103: Box 1, Bay 03, (SCSI bus 0, SCSI id 2)
Logical Volume Raid Level: MIRROR FAULT TOLERANCE (Raid 1)
stripe_size=128kB
Logical Volume Capacity : 3,067MB
1 Peripheral device LUN addressing (PDLA) mode is used by all
operating systems supporting the MSA1000 except HP-UX. In
PDLA mode, the units are numbered starting with 1, but the first
LUN is 2.
Volume set addressing (VSA) mode is used by HP-UX. The unit and
LUN are numbered the same.
For Tru64 UNIX, PDLA mode is used.
2 The Unit Identifier (Unit ID) is assigned the same number as the
LUN.
3 The Device Identifier for the logical volume. It is equivalent to the
node WWN and port WWN. It is assigned by the MSA1000.
4 The MSA1000 is enabled to use cache, which is the default.
5 Max Boot Partition is ignored by all operating systems except
Windows.
6 Describes the current condition of the volume.
7 Provides the parity or mirror status, depending on the RAID level
selected. Parity calculation does not start until the first write is
4-18 Preparing the MSA1000 for TruCluster Server Use