[Maint] Remove Cid Pid [Noscan]; [Maint] Deleteunit Cid Uid [Noscan] - 3Ware 720-0127-02 Manual

Chapter 3. Legacy CLI Syntax Reference
[maint] remove
This command allows you to remove (or export) a port (or drive). Exporting a
port instructs the firmware to remove the specified port from its poll of
managed ports, but retains the Disk Configuration Block (DCB) metadata on
the attached disk. You can import (re-introduce) the port via rescan. By
default the OS is informed of this change. If you use the noscan option the OS
is not notified of the drive removal.
[maint] deleteunit
This command allows you to delete a unit. Deleting a unit not only removes
the specified unit from the controller's list of managed units, but also destroys
the DCB (Disk Configuration Block) metadata. Ports (or disks) associated
with this unit will now be part of the free poll of managed disks. This is a
destructive command and should be used with care. By default the OS is
informed of this change. You can alter this behavior using the noscan option.
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cid pid
[noscan]
Warning!
Removing any drive requires use of an approved hot swap carrier.
If you do not have such a carrier you must first power down your
system. Failure to do so may cause the system to hang or become
corrupted. It may even damage your system.
Alert!
Removing a drive causes a redundant array to degrade. Drives
cannot be removed if they are part of a degraded or non-redundant
array, with the exception of Single and JBOD drives.
Warning! Single and JBOD Drives
You must first unmount any Single or JBOD drive before issuing
the remove command. Failure to do so may cause the system to
hang or become corrupted.
cid uid
[noscan]
Warning! Back up data
Back up any critical data prior to deleting a unit. Failure to do so
will result in lost data.
3ware 9000 Series Serial ATA Controller CLI Guide