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PLA-Support>Sun Systems>SPARC>Workgroup Servers>SN-SPARC: SF-Vx80
 

Applies to:

Goal

 Documented below is the proper procedure for removing and replacing failed Sun Fire hot-pluggable internal disk drives (FC-AL).

Solution

The system's disk hot-plug feature allows you to remove a disk drive without shutting down the operating system or powering the system off.

Steps to Follow
When you remove a hot-pluggable drive, you need to stop the drive and take it off-line to remove the logical software links to the drive. Use the luxadm and the devfsadm command tools to remove the internal disk(s). The following procedure describes the general steps involved, (your specific device names may be different).

First, if the disk was under control of a volume management software (e.g. Solaris[TM] Volume Manager, Veritas Volume Manager), make sure to take the necessary steps for the disk replacement in the volume manager software before and after issuing the following disk replacement procedure.

In case of Veritas Volume Manager (VxVM), please refer to Document: 1003122.1 , Document: 1011782.1  , and Document: 1002285.1 for additional information.

In case of Solaris Volume Manager (SVM), please refer to Document: 1010753.1  for additional information. For 3rd party volume manager software consult the documentation provided by the software vendor, or consult the 3rd party software vendor's service organization for assistance.

Removing the failed disk:

As superuser, enter the following command,

# /usr/sbin/luxadm remove_device /dev/rdsk/c1t1d0s2

WARNING!!! Please ensure that no file systems are mounted on these device(s).

All data on these devices should have been backed up.

The list of devices which will be removed is:
1: Device name: /dev/rdsk/c1t1d0s2
Node WWN: 20000020371b1f31
Device Type: Disk device
Device Paths: /dev/rdsk/c1t1d0s2
Please verify the above list of devices and then enter c or <CR> to Continue or q to Quit. [Default: c]:c
stopping: /dev/rdsk/c1t1d0s2.... Done
offlining: /dev/rdsk/c1t1d0s2.... Done
The drives are now off-line and spun down.
Physically remove the disk and press the Return key.

Hit <Return> after removing the device(s).

<date> <systemname> picld[87]: Device DISK1 removed
Device: /dev/rdsk/c1t1d0s2
No FC devices found. - /dev/rdsk/c1t1d0s2

Note: If 'luxadm remove_device' fails, please follow the below procedure.

Note: The  picld  daemon notifies the system that the disk has been removed.

Initiate devfsadm cleanup subroutines by entering the following command:

# /usr/sbin/devfsadm -C

The default devfsadm operation is to attempt to load every driver in the system and attach these drivers to all possible device instances. devfsadm then creates device special files in /devices and logical links in /dev.

The -C option cleans up the /dev directory and removes any lingering logical links to the device link names.

Installing a new disk:

As superuser, list the system's current logical device links.

# ls /dev/rdsk/c1t1d*

You should have no match.

Insert the drive in its disk bay and enter the following command:

# /usr/sbin/devfsadm

or

# /usr/sbin/luxadm insert_device <enclosure_name>,sx

where x is the slot number. (Use luxadm display <enclosure_name> to find the slot number. To find the <enclosure_name> do a luxadm probe .)

List the system's current c1t1d* logical device links.

# ls /dev/rdsk/c1t1d*

you should see,

/dev/rdsk/c1t1d0s0 /dev/rdsk/c1t1d0s1 /dev/rdsk/c1t1d0s2
/dev/rdsk/c1t1d0s3 /dev/rdsk/c1t1d0s4 /dev/rdsk/c1t1d0s5
/dev/rdsk/c1t1d0s6 /dev/rdsk/c1t1d0s7

NOTE:

If you have not configured the system with two boot disks, you cannot hot-plug a single boot disk. You can only hot-plug the boot disk if you have configured a two-disk mirror of the boot disk for hot-plugging. If the system is configured with a boot disk and a data disk, you may hot-plug the data disk, not the boot disk.

In case you are replacing the disk with a Higher Capacity Disk( due to unavailability of the part) please refer the following KM Article for the instructions

Sparc Servers: Replacing a Smaller Older Disk with a Newer Larger Capacity Disk (Doc ID 2332709.1)

Using a 146GB FC-AL disk to replace a 72GB FC-AL disk which is part of a mirrored volume. (Doc ID 2287066.1)

Keywords: v890, v880, v490, v480, 280R, 280, 480, 490, 880, 880z, 890, replace disk, failed drive, disk, drive

Previously Published As 40517

References

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