HP Surestore Disk Array 12h System Administrator's Guide for HP-UX, MPE, and W - Page 156

Disk array Type ID, Write Working Set

Page 156 highlights

MPE Using the ARM Command Line Utilities for MPE Viewing the Disk Array General Configuration Settings Parameter Capacity Depletion Threshold Write Working Set Interval Language Log Full Warning Default Setting Description 0% Indicates the amount of space below which the disk array should signal a Capacity Depletion warning. For example, if this field is set to 99% then when the disk array reaches 99% capacity, a Capacity Depletion warning will be indicated. 0% means that Capacity Depletion warnings will not be issued. 8640 Indicates the period (in ten second intervals) over which seconds write performance measurements should be gathered. For example, 8640 X 10 = 86400 seconds = 24 hours. ENGLISH Indicates the language used when displaying information on the front panel. DISABLED Indicates whether the disk array should assert a warning when some portion of the controller log is full. When enabled, the disk array will assert a Log Full Warning when one of the disk array log pages fills, or a log parameter reaches its maximum value. When disabled, no Log Full Warning will be indicated. Volume Set Partitioning Format Pattern Fill Disk array Type ID LUN Creation Limit Maximum LUN Creation Limit DISABLED Indicates whether the disk array should boot when half or more of the previously available drives are unavailable (i.e., there is no drive quorum). Enabled indicates that volume set partitioning should be allowed. Disabled, the system will remain in the No Quorum state when the required quorum is not available. DISABLED Indicates whether the disk array will fill in incomplete RAID blocks with a format pattern when performing new writes. Some operating systems (not HP-UX, MPE, or NT) expect that SCSI format commands completely reinitialize data to a non-random pattern. When using the array with one of those operating systems, pattern filling should be enabled. 12 Uniquely identifies the disk array hardware configuration. This field can be used to find the number of drives and SCSI channels supported within the disk array. 8 Controls the range of LUNs that may be created. 8 Specifies the maximum supported value for the LUN Creation Limit. 156

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Using the ARM Command Line Utilities for MPE
Viewing the Disk Array General Configuration Settings
156
MPE
Parameter
Default
Setting
Description
Capacity Depletion
Threshold
0%
Indicates the amount of space below which the disk array
should signal a Capacity Depletion warning. For example,
if this field is set to 99% then when the disk array reaches
99% capacity, a Capacity Depletion warning will be
indicated. 0% means that Capacity Depletion warnings
will not be issued.
Write Working Set
Interval
8640
seconds
Indicates the period (in ten second intervals) over which
write performance measurements should be gathered.
For example, 8640 X 10 = 86400 seconds = 24 hours.
Language
ENGLISH Indicates the language used when displaying information
on the front panel.
Log Full Warning
DISABLED Indicates whether the disk array should assert a warning
when some portion of the controller log is full. When
enabled, the disk array will assert a Log Full Warning
when one of the disk array log pages fills, or a log
parameter reaches its maximum value. When disabled,
no Log Full Warning will be indicated.
Volume Set
Partitioning
DISABLED Indicates whether the disk array should boot when half or
more of the previously available drives are unavailable
(i.e., there is no drive quorum). Enabled indicates that
volume set partitioning should be allowed. Disabled, the
system will remain in the No Quorum state when the
required quorum is not available.
Format Pattern Fill
DISABLED Indicates whether the disk array will fill in incomplete
RAID blocks with a format pattern when performing new
writes. Some operating systems (not HP-UX, MPE, or
NT) expect that SCSI format commands completely
reinitialize data to a non-random pattern. When using the
array with one of those operating systems, pattern filling
should be enabled.
Disk array Type ID
12
Uniquely identifies the disk array hardware configuration.
This field can be used to find the number of drives and
SCSI channels supported within the disk array.
LUN Creation Limit
8
Controls the range of LUNs that may be created.
Maximum LUN
Creation Limit
8
Specifies the maximum supported value for the LUN
Creation Limit.