User`s guide

SELFTEST OTHER_CONTROLLER

Runs a self-test on the other controller.

Format

SELFTEST OTHER_CONTROLLER

Description

The SELFTEST OTHER_CONTROLLER command ﬂushes all user data from the

other controller’s write-back cache (if present), shuts down the other controller,

then restarts it in DAEMON loop-on-self-test mode. The OCP reset (//) button

must be pressed to take the other controller out of loop-on-self-test mode.

If any disks are online to the other controller, the controller does not self-test

unless the OVERRIDE_ONLINE qualiﬁer is speciﬁed (HSD and HSJ only). If

any user data cannot be ﬂushed to disk, the controller does not self-test unless

the IGNORE_ERRORS qualiﬁer is speciﬁed.

Specifying IMMEDIATE causes the other controller to self-test immediately

without ﬂushing any user data to the disks, even if drives are online to the host.

Qualiﬁers for HSD and HSJ Controllers

IGNORE_ERRORS

NOIGNORE_ERRORS (Default)

If errors result when trying to write user data, the controller does not start the

self-test unless IGNORE_ERRORS is speciﬁed.

If the IGNORE_ERRORS qualiﬁer is speciﬁed, the controller starts the self-test

even if all customer data cannot be written to disk from the write-back cache.

CAUTION

Customer data may be lost or corrupted if the IGNORE_ERRORS

qualiﬁer is speciﬁed.

IMMEDIATE

NOIMMEDIATE (Default)

If IMMEDIATE is speciﬁed, the controller will immediately start self-test without

checking for online devices or ﬂushing user data from write cache to disk.

CAUTION

Customer data may be lost or corrupted if the IMMEDIATE qualiﬁer is

speciﬁed.

OVERRIDE_ONLINE

NOOVERRIDE_ONLINE (Default)

If any units are online to the controller, the controller does not self-test unless

OVERRIDE_ONLINE is speciﬁed.

Command Line Interpreter B–55