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Operating Systems Solaris fmthard error
# 1  
Old 08-13-2012
Data fmthard error
Hello,

I have a X86 server (solaris 10) with 4 similar disks. One of these 4 disks is the root disk.
I need to create a mirror disk to the root disk and two hot spares using the remaining 3 disks.

However, when I use the fmthard commad, I am getting the below error:
Code:
root@xxxxxxxx>prtvtoc /dev/rdsk/c0t5000CCA0253E2869d0s2 | fmthard -s - /dev/rdsk/c0t5000CCA0253D491Dd0s2
Partition 0 not aligned on cylinder boundary: "       0      2    00   33575000 551487500 585062499   /"

I checked the size of all the 4 disks and they are same. See below 'iostat -E' output:

Code:
sd1       Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HITACHI  Product: H106030SDSUN300G Revision: A2B0 Serial No: 1208N30TGB
Size: 300.00GB <299999999488 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0

sd5       Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HITACHI  Product: H106030SDSUN300G Revision: A2B0 Serial No: 1208N35REB
Size: 300.00GB <299999999488 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0

sd6       Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HITACHI  Product: H106030SDSUN300G Revision: A2B0 Serial No: 1208N2PVEB
Size: 300.00GB <299999999488 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0

sd7       Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: HITACHI  Product: H106030SDSUN300G Revision: A2B0 Serial No: 1208N3184B
Size: 300.00GB <299999999488 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0

When I checked the partition tables of the root disks then it had 46870 cylinders for the same size slice (279.37G), while the other disks had 36468 cylinders for this slice of 279.37G.

See below outputs:

Code:
Root Disk

format> verify

Primary label contents:

Volume name = < solaris>
ascii name  = <HITACHI-H106030SDSUN300G-A2B0 cyl 46870 alt 2 hd 20 sec 625>
pcyl        = 46872
ncyl        = 46870
acyl        =    2
bcyl        =    0
nhead       =   20
nsect       =  625
Part      Tag    Flag     Cylinders         Size            Blocks
  0       root    wm    2686 - 46804      262.97GB    (44119/0/0) 551487500
  1       swap    wu       1 -  2685       16.00GB    (2685/0/0)   33562500
  2     backup    wm       0 - 46870      279.37GB    (46871/0/0) 585887500
  3 unassigned    wm       0                0         (0/0/0)             0
  4 unassigned    wm       0                0         (0/0/0)             0
  5 unassigned    wm       0                0         (0/0/0)             0
  6 unassigned    wm       0                0         (0/0/0)             0
  7 unassigned    wm   46805 - 46870      402.83MB    (66/0/0)       825000
  8       boot    wu       0 -     0        6.10MB    (1/0/0)         12500
  9 unassigned    wm       0                0         (0/0/0)             0

format>

Other Disks:

format> verify

Primary label contents:

Volume name = <        >
ascii name  = <DEFAULT cyl 36469 alt 2 hd 255 sec 63>
pcyl        = 36471
ncyl        = 36469
acyl        =    2
bcyl        =    0
nhead       =  255
nsect       =   63
Part      Tag    Flag     Cylinders         Size            Blocks
  0 unassigned    wm       0                0         (0/0/0)             0
  1 unassigned    wm       0                0         (0/0/0)             0
  2     backup    wu       0 - 36468      279.37GB    (36469/0/0) 585874485
  3 unassigned    wm       0                0         (0/0/0)             0
  4 unassigned    wm       0                0         (0/0/0)             0
  5 unassigned    wm       0                0         (0/0/0)             0
  6 unassigned    wm       0                0         (0/0/0)             0
  7 unassigned    wm       0                0         (0/0/0)             0
  8       boot    wu       0 -     0        7.84MB    (1/0/0)         16065
  9 unassigned    wm       0                0         (0/0/0)             0

format>

So, Why are the number of cylinders different??? How can i correct this???Smilie

Thanks for your help in advance.//

BR//
# 2  
Old 08-13-2012
You state that this is a x86 box but not the type of disk drives.

First, some questions:

1. Are these drives SCSI? (Sorry, haven't searched on the data you posted!!!)
2. If you eyeball the physical drives and their labels, is the geometry the same? (I've seen many times the same manufacturers drives have the same part no., the same capacity, but different geometry. Although your geometry seems too far adrift, still need to check the physical labels.)
3. Have the drives been used for another O/S? Could they have been set up in a parculiar way?
# 3  
Old 08-14-2012
Hi,

Quote:
Originally Posted by hicksd8
1. Are these drives SCSI? (Sorry, haven't searched on the data you posted!!!)
Am not sure how can i check this??? Smilie
Please suggest.
Quote:
Originally Posted by hicksd8
2. If you eyeball the physical drives and their labels, is the geometry the same? (I've seen many times the same manufacturers drives have the same part no., the same capacity, but different geometry. Although your geometry seems too far adrift, still need to check the physical labels.)
Yes, all the four disks have the same geometry.
Quote:
Originally Posted by hicksd8
3. Have the drives been used for another O/S? Could they have been set up in a parculiar way?
No, these disks are all new disks and have not been used by any other system. Usually, I run a setup script which creates the disk-mirroring and hot-spares. When the script failed on this particular system to do so, I checked manually using fmthard command which failed as stated above in my query.
# 4  
Old 08-14-2012
Manually run format on these disks and select fdisk to put an MBR on the disks. fmthard setups the VTOC but does does not add an MBR to a disk.
# 5  
Old 08-14-2012
These drives are SCSI (SAS) drives and the geometry seems adrift somehow.

I suggest that you try this...............

A SCSI hard disk is a highly programmable device. The characteristics are set by setting the values on "mode pages" on the drive. One of the mode pages, 0x04, holds the rigid geometry parameters and this can be changed.

Boot into single user:

Code:
 
boot cdrom -s

and run

Code:
 
format -e

the -e is for 'expert mode'. You should have a menu item that handles SCSI devices and the ability to select one of your drives. Do NOT select the working/boot disk as you might make changes that you don't want. Select one of your troublesome drives and then select "set all mode pages to default". When that's done quit out.

Now see whether the geometry has changed.

If not, then mode pages are not the problem.
# 6  
Old 08-14-2012
Hi Guys,


These disks are SCSI SAS2 disks, apologies to anyone who read what was here before I corrected it.

I would think that these disks willa ll have to be "formatted", there are various ways to do this - probably best to dd the first few sectors of the raw device over then run format -e

Regards

Dave
Last edited by gull04; 08-14-2012 at 09:48 AM..
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