HP-UX Reference (11i v1 00/12) - 1M System Administration Commands N-Z (vol 4)

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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man1m/naaagt.1m
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s
sss(1M) sss(1M)
NAME
sss - set spindle sync state of drives in an HP SCSI disk array
SYNOPSIS
sss -d [drive_list] device_file
sss -on [-s][drive_list] device_file
sss -off [drive_list] device_file
DESCRIPTION
sss displays or changes the spindle synchronization state of the disk drives in the HP SCSI disk array
associated with device file device_file. Though device_file is the name of a device file corresponding to a
LUN, sss operates (by default) on all disk drives physically connected to the array controller, without
regard to the drives’ LUN ownership. Even if multiple LUNs (or sub-LUNs) are present, sss should be
directed to only one of them (that is, specify the name of the device file for only one of the LUNs in the
sss command line). To affect a subset of the physical drives in the array, specify which drives to affect in
drive_list.
Options
-d Display only. Displays the current spindle synchronization status. This has two
components: the drive’s master or slave status and its state of spindle synchroniza-
tion (on or off).
-on Sync on. Enables spindle synchronization; one drive is designated master and the
rest are designated slaves, unless the -s "slave only" tag is present, in which case
all designated drives will be slaves. If only one drive is designated, it will be a mas-
ter.
-off Sync off. Disables spindle synchronization.
-s Slave only. Only used with the -on option. Make all designated drives slaves.
This is useful when replacing a drive in a set of drives which already have spindle
synchronization enabled. If you have replaced the master drive, use the
-on option
without
-s, and specify the new drive only.
drive_list A list of drives used to specify which drives in the array will be affected by the syn-
chronization operation. drive_list is in the form cXiY , where X (a decimal number)
represents the SCSI channel number, and Y (a decimal number) represents the
SCSI-ID number of the desired drive. Drives names in drive_list are separated by
commas. If no drive_list is present,
sss defaults to all physical drives attached to
the array controller, regardless of which LUNs they belong to.
RETURN VALUE
sss returns the following values:
0 Successful completion.
-1 Command failed (an error occurred).
DIAGNOSTICS AND ERRORS
Errors can originate from problems with:
• sss
• SCSI (device level) communications
• system calls
Error messages generated by sss:
usage: sss <-d | -on [-s] | -off> [cXiY,...] <special>
sss
encountered an error in command syntax. Enter the command again with the required argu-
ments, in the order shown.
sss: Arg out of range
One of the arguments has exceeded its maximum or minimum size, or is incorrect in form. Check the
size and form of each argument.
sss: device busy
To ensure that sss does not modify a disk array that is being used by another process,
sss
Section 1M−−810 − 1 − HP-UX Release 11i: December 2000
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