Darya.zelenina: Created page with "'''DEVICE_NAMING''' is a bit mask system parameter indicating whether port allocation classes are used in forming SCSI device names on ..."

2019-04-09T05:26:30Z

Created page with "'''DEVICE_NAMING''' is a bit mask system parameter indicating whether port allocation classes are used in forming SCSI device names on ..."

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'''DEVICE_NAMING''' is a bit mask [[System Parameters|system parameter]] indicating whether port allocation classes are used in forming SCSI [[Device Name|device names]] on [[Alpha]] and [[Integrity]] servers.

=Definition=
{| class="wikitable"
! colspan="col" | Bit
! colspan="col" | Definition
|-
| 0
| If 1, enable new naming.
|-
| 1
| Must be 0. This bit is Reserved for use by VSI.
|-
| 2
| If 1, cloned device unit numbers wrap after 9999(not 65472).
|-
| 3
| If 1, cloned device unit numbers wrap after 32767(not 65472).
|-
|}

Even if both bits are zero, device unit numbers will wrap after 9999 if "nodename$" is prefixed to the name of the device in question (e.g. VMS123$DKA100:); devices whose drivers support larger device numbers will wrap after 65472 (or 32767 if bit 3 is set) only if the nodename is not built into the device name.

=See also=
* {{Template:Cluster}}

[[Category:System Parameters]]

DEVICE NAMING - Revision history

Darya.zelenina: Created page with "'''DEVICE_NAMING''' is a bit mask system parameter indicating whether port allocation classes are used in forming SCSI device names on ..."