SCF Reference Manual for the Storage Subsystem (G06.28+, H06.05+, J06.03+)

(Physical disks only) shows whether a virtual disk process is allowed to consider the physical
volume for file placement.
PhysvolSelect
Shows which storage pool process the disk is associated with.Pool
Shows the tape of protection to use for the disk volume directory: full-block checking
(CHECKPOINT), serial writes (SERIAL), or disabled (OFF).
ProtectDirectory
The number of seconds that the NonStop storage controller must wait for the device to respond
to a recovery I/O. This attribute only applies to ESS (Enterprise Storage) disks.
RecoveryTimeout
The number of revive blocks of disk data to be copied during each copy interval when the
disk is being revived.
ReviveBlocks
The interval of time, in 10-millisecond units, between each copy operation and the next when
the disk is being revived
ReviveInterval
The priority of a revive task that executes in the DP2 IOP. See also REVIVEPRIORITY.RevivePriority
The amount of data to be revived between preemption checks. See also REVIVERATE.ReviveRate
(Mirrored volumes only) specifies whether serial writes are used when updating files. ENABLED
minimizes the potential data loss caused by certain processor error conditions. DISABLED
maximizes the performance of mirrored volumes.
When ENABLED, the IOP performs serial write operations when the mirror disk is up. If the
mirror disk is not up and if the FullCheckpoints value is FORCED or ENABLED, full-block
checkpoints are used to protect the validity of the data. See also FULLCHECKPOINTS.
SerialWrites
Shows whether write caching is enabled.WriteCache
Path Information (for each path)
The adapter type and physical location (group, module, slot) of the storage adapter that
controls the disk. This value is retrieved from the system.
Adapter
For an internal disk, the SCSI address.Disk Device ID / Port
Name
For a model 45xx disk connected to an adapter, the slot number of the disk in the modular
disk subsystem. This is the address used by the SAC to access the disk.
For an M8xxx disk in a Fibre Channel disk module (FCDM), the (shelf, bay) of the disk
drive.
For a disk in an Enterprise Storage System (ESS), the worldwide name (WWN) of the disk.
Always shows a value of zero (0).Disk Device LUN
The physical location of an internal disk (group, module, slot). For a model 45xx disk in a
modular disk subsystem or a model M8xx disk in a FCDM, Location is the location of the
storage adapter that controls the disk.
Location (Group,
Module, Slot)
The name of the ServerNet addressable controller in the adapter. The name is determined
by concatenating the adapter type, the physical location of the SAC in the adapter, and the
SAC Name
adapter location values. Slots 50, 51, and 53 are on the X fabric. Slots 52, 54, and 55
are on the Y fabric.
The physical location of the SAC in the adapter. For an internal disk, this value is either 1
or 2. This value determines the SCSI bus used to access the internal disk.
SAC Number
For devices connected to an adapter, a value of 1, 2, 3, or 4 depending on how many
SACs are installed in the adapter.
Displaying Disk Label Information
-> INFO $SYSTEM, LABEL
Disk Label Information $SYSTEM:
Disk Label Information $SYSTEM Primary:
*Volume Name.......................... $SYSTEM
*Alternate Volume Name................ $SYSTEM
Volume ID............................ 257
52 Displaying Information About Disk Drives