Is K-Class Server supported Hotswapable to replace the bootdisk?

[Sudhaadm]

Hi All,
Thanks in Advance.
I have problem in Bootdisk and need to replace online and the server is running on alternate boot path?
Is it possible to replace online in K-class Servers?

Please advise?
> model
9000/800/K380
root@Akash
> vgdisplay /dev/vg00
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 13
Open LV 13
Max PV 16
Cur PV 2
Act PV 1
Max PE per PV 5120
VGDA 2
PE Size (Mbytes) 4
Total PE 4340
Alloc PE 3368
Free PE 972
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0

root@Akash
>

[Steve Lewis · Accepted solution]

That depends on whether you boot off the internal disk, or off a disk that is in a external disk system, such as a HASS.

If the broken disk is in a HASS and its been properly mirrored, then go right ahead.

If you want to replace one of the internal disks in the disk cage in the main cabinet, then I don't rate your chances highly, especially if you have other disks in the cage with the boot disk.

[Rick Garland]

If the drives are internal to the K class, will have to power down so the disks are accessible. Will need to pull the cover off and loosen some screws and etc...

[Jeff Schussele]

Hi,

No, not if it's a disk internal to the K. They are not hot-swappable.
If it's external to the K, then yes you could.

Rgds,
Jeff

[A. Clay Stephenson]

This is exactly why no experienced admin ever used the K's internal drive bays. On my old K-boxes I always used JBOD's for the boot disks.

[Sudhaadm]

Hi All,
Thanks for the reply,
The boot disk seems to be internal.so we need to be shutdown the server to replace the disk?
is it right?

disk 1 10/0.6.0 sdisk CLAIMED DEVICE SEAGATE ST318275LC
/dev/dsk/c2t6d0 /dev/rdsk/c2t6d0

[Henk Geurts]

yes you are right.
but make sure to change the right disk.
the defect one seems to be dev/dsk/c2t5d0 (not the disk you mentioned) as it can't be queried.

use
vgdisplay -v vg00
and
pvdisplay
to make sure.

regards

[Andrew Rutter]

hi,

I aggre with most points raised so far.

It could be either an interanl or external hass drive.
However the new information you have provided could mean it is in fact and external drive(hass disk)

Henk is correct about you listing the wrong disk device in your last post, the faulty drive you have indicates to be c2t5d0 not c2t6d0.
The disk model also shown St318275LC indicates that this is infact an external disk. This disk has a sca80 type interface and is used in the 18gb hass disks part number A5286A. This is not compatible interanlly with the K class.

Do a fresh ioscan to check the models of disk and verify the correct disk and then look at the external storage boxes you have. The faulty drive should have an amber light displayed.
post the ioscan if doubtful

Andy

[Sudhaadm]

Hi All,
Thats right and i pasted which is good and it is primary boot path.Just for disk reference i pasted that output.The same server i have one more disk is having problem and the details as given below.
please advise how can i replace the disk with out data intact and is it hot swapable to replace the disks.
--------------
Thanks for all

> ioscan -funC disk
Class I H/W Path Driver S/W State H/W Type Description
========================================================================================
disk 31 8/8/1/0.35.30.19.0.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c1t0d0 /dev/rdsk/c1t0d0
disk 41 8/8/1/0.35.30.19.1.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c15t0d0 /dev/rdsk/c15t0d0
disk 42 8/8/1/0.35.30.19.1.0.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c15t0d1 /dev/rdsk/c15t0d1
disk 33 8/8/1/0.35.30.19.2.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c13t0d0 /dev/rdsk/c13t0d0
disk 34 8/8/1/0.35.30.19.2.0.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c13t0d1 /dev/rdsk/c13t0d1
disk 35 8/8/1/0.35.30.19.2.0.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c13t0d2 /dev/rdsk/c13t0d2
disk 1 10/0.6.0 sdisk CLAIMED DEVICE SEAGATE ST318275LC
/dev/dsk/c2t6d0 /dev/rdsk/c2t6d0
disk 11 10/0.8.0 sdisk CLAIMED DEVICE SEAGATE ST39173WC
/dev/dsk/c2t8d0 /dev/rdsk/c2t8d0
disk 12 10/0.9.0 sdisk CLAIMED DEVICE IBM DGHS09Y
/dev/dsk/c2t9d0 /dev/rdsk/c2t9d0
disk 13 10/0.10.0 sdisk CLAIMED DEVICE SEAGATE ST39173WC
/dev/dsk/c2t10d0 /dev/rdsk/c2t10d0
disk 15 10/0.13.0 sdisk CLAIMED DEVICE SEAGATE ST39173WC
/dev/dsk/c2t13d0 /dev/rdsk/c2t13d0
disk 16 10/0.14.0 sdisk CLAIMED DEVICE SEAGATE ST39173WC
/dev/dsk/c2t14d0 /dev/rdsk/c2t14d0
disk 17 10/0.15.0 sdisk CLAIMED DEVICE SEAGATE ST39173WC
/dev/dsk/c2t15d0 /dev/rdsk/c2t15d0
disk 32 10/8/1/0.36.30.19.0.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c11t0d0 /dev/rdsk/c11t0d0
disk 36 10/8/1/0.36.30.19.0.15.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c11t15d2 /dev/rdsk/c11t15d2
disk 37 10/8/1/0.36.30.19.0.15.3 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c11t15d3 /dev/rdsk/c11t15d3
disk 43 10/8/1/0.36.30.19.1.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c16t0d0 /dev/rdsk/c16t0d0
disk 44 10/8/1/0.36.30.19.1.0.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c16t0d1 /dev/rdsk/c16t0d1
disk 38 10/8/1/0.36.30.19.2.0.0 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c14t0d0 /dev/rdsk/c14t0d0
disk 39 10/8/1/0.36.30.19.2.0.1 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c14t0d1 /dev/rdsk/c14t0d1
disk 40 10/8/1/0.36.30.19.2.0.2 sdisk CLAIMED DEVICE EMC SYMMETRIX
/dev/dsk/c14t0d2 /dev/rdsk/c14t0d2
disk 2 10/12/5.2.0 sdisk CLAIMED DEVICE HP DVD-ROM 6x/32x
/dev/dsk/c3t2d0 /dev/rdsk/c3t2d0
root@Akash
:/opt/sfdm
>

===============================
> vgdisplay -v dev/vg00
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
--- Volume groups ---
VG Name /dev/vg00
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 13
Open LV 13
Max PV 16
Cur PV 2
Act PV 1
Max PE per PV 5120
VGDA 2
PE Size (Mbytes) 4
Total PE 4340
Alloc PE 3368
Free PE 972
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
--- Logical volumes ---
LV Name /dev/vg00/lvol1
LV Status available/stale
LV Size (Mbytes) 48
Current LE 12
Allocated PE 24
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol2
LV Status available/stale
LV Size (Mbytes) 3072
Current LE 768
Allocated PE 1536
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol3
LV Status available/stale
LV Size (Mbytes) 92
Current LE 23
Allocated PE 46
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol5
LV Status available/stale
LV Size (Mbytes) 1024
Current LE 256
Allocated PE 512
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol6
LV Status available/stale
LV Size (Mbytes) 1300
Current LE 325
Allocated PE 650
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol7
LV Status available/stale
LV Size (Mbytes) 512
Current LE 128
Allocated PE 256
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol8
LV Status available/stale
LV Size (Mbytes) 880
Current LE 220
Allocated PE 440
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol9
LV Status available/stale
LV Size (Mbytes) 1536
Current LE 384
Allocated PE 768
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol10
LV Status available/stale
LV Size (Mbytes) 200
Current LE 50
Allocated PE 100
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol11
LV Status available/stale
LV Size (Mbytes) 160
Current LE 40
Allocated PE 80
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol12
LV Status available/stale
LV Size (Mbytes) 4096
Current LE 1024
Allocated PE 2048
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/lvol13
LV Status available/syncd
LV Size (Mbytes) 300
Current LE 75
Allocated PE 75
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg00/vsa
LV Status available/syncd
LV Size (Mbytes) 252
Current LE 63
Allocated PE 63
Used PV 1


--- Physical volumes ---
PV Name /dev/dsk/c2t6d0
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t5d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
PV Status available
Total PE 4340
Free PE 972
Autoswitch On


===========================================
> strings /etc/lvmtab
/dev/vg00
/dev/dsk/c2t5d0
/dev/dsk/c2t6d0
/dev/vgold
/dev/dsk/c2t8d0
/dev/dsk/c2t9d0
/dev/dsk/c2t10d0
/dev/vg01
/dev/dsk/c2t12d0
/dev/dsk/c2t13d0
/dev/dsk/c2t14d0
/dev/dsk/c2t15d0
/dev/vga
/dev/dsk/c5t0d0
/dev/dsk/c5t0d1
/dev/vgb
/dev/dsk/c13t0d0
/dev/dsk/c13t0d1
/dev/dsk/c13t0d2
/dev/dsk/c14t0d0
/dev/dsk/c14t0d1
/dev/dsk/c14t0d2

>
================================
One more Disk is having problem
> vgdisplay -v /dev/vg01
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t12d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
--- Volume groups ---
VG Name /dev/vg01
VG Write Access read/write
VG Status available
Max LV 255
Cur LV 2
Open LV 2
Max PV 16
Cur PV 4
Act PV 3
Max PE per PV 2170
VGDA 6
PE Size (Mbytes) 4
Total PE 6510
Alloc PE 6510
Free PE 0
Total PVG 0
Total Spare PVs 0
Total Spare PVs in use 0

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t12d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
--- Logical volumes ---
LV Name /dev/vg01/lvol1
LV Status available/stale
LV Size (Mbytes) 8680
Current LE 2170
Allocated PE 4340
Used PV 1

vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t12d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
LV Name /dev/vg01/lvol2
LV Status available/syncd
LV Size (Mbytes) 8680
Current LE 2170
Allocated PE 4340
Used PV 2


--- Physical volumes ---
PV Name /dev/dsk/c2t13d0
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t12d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
PV Status available
Total PE 2170
Free PE 0
Autoswitch On

PV Name /dev/dsk/c2t14d0
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t12d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
PV Status available
Total PE 2170
Free PE 0
Autoswitch On

PV Name /dev/dsk/c2t15d0
vgdisplay: Warning: couldn't query physical volume "/dev/dsk/c2t12d0":
The specified path does not correspond to physical volume attached to
this volume group
vgdisplay: Warning: couldn't query all of the physical volumes.
PV Status available
Total PE 2170
Free PE 0
Autoswitch On

Thanks