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Mounting a new disk on linux server

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Operating Systems Linux Mounting a new disk on linux server
# 1  
Old 11-29-2010
Code:
 
RCWLO-ODS10g:~ # fdisk -l
Disk /dev/sda: 72.9 GB, 72999763968 bytes
255 heads, 63 sectors/track, 8875 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        2624    20972857+  83  Linux
/dev/sda3            2625        4583    15735667+  83  Linux
/dev/sda4            4584        8875    34475490   82  Linux swap / Solaris
Disk /dev/sdb: 145.9 GB, 145999527936 bytes
255 heads, 63 sectors/track, 17750 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        4178    33559753+  83  Linux
/dev/sdb2            4179        5484    10490445   83  Linux
/dev/sdb3            5485       17750    98526645   83  Linux
Disk /dev/sdc: 1406.6 GB, 1406601789440 bytes
255 heads, 63 sectors/track, 171009 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1      171009  1373629761   83  Linux
Disk /dev/sdd: 1406.6 GB, 1406601789440 bytes
255 heads, 63 sectors/track, 171009 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1      171009  1373629761   83  Linux

OK. So I am pretty sure I can use sde as the new disk.
Do I need to run the mkfs now to create the sde1? Do you have the command exactly based on what my other disks look like?

Thanks for your help.
# 2  
Old 11-29-2010
Quote:
Originally Posted by jamie_collins
OK. So I am pretty sure I can use sde as the new disk.
That's an interesting conclusion given that I don't see sde listed in there at all, and it should be! If it somehow missed it, try fdisk -l /dev/sde
# 3  
Old 02-12-2011
simply fdisk -l is the way to find out which are the new disk. If the disk are presented from SAN they wont have any partion table and hence doing fdisk /dev/<sd*> will make it clear. If you need to reboot the server from viewing the disks there is some issue with the storage system or the way it is being presented.
# 4  
Old 05-27-2011
Really old post guys sorry.
I finaly have time to do this but I noticed when i mount sdc1 it is exactly the same as sdd1:

Code:
 
RCWLO-ODS10g:/NEWSAN/backup # df -k /NEWSAN
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdc1            1373587836 683999232 689588604  50% /NEWSAN
RCWLO-ODS10g:/NEWSAN/backup # df -k /SAN
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sdd1            1373587836 683999232 689588604  50% /SAN
RCWLO-ODS10g:/NEWSAN/backup #

Does this mean sdc1 is the mirror of sdd1?

Code:
 
RCWLO-ODS10g:/NEWSAN/backup # fdisk -l
Disk /dev/sda: 72.9 GB, 72999763968 bytes
255 heads, 63 sectors/track, 8875 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14        2624    20972857+  83  Linux
/dev/sda3            2625        4583    15735667+  83  Linux
/dev/sda4            4584        8875    34475490   82  Linux swap / Solaris
Disk /dev/sdb: 145.9 GB, 145999527936 bytes
255 heads, 63 sectors/track, 17750 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1        4178    33559753+  83  Linux
/dev/sdb2            4179        5484    10490445   83  Linux
/dev/sdb3            5485       17750    98526645   83  Linux
Disk /dev/sdc: 1406.6 GB, 1406601789440 bytes
255 heads, 63 sectors/track, 171009 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1      171009  1373629761   83  Linux
Disk /dev/sdd: 1406.6 GB, 1406601789440 bytes
255 heads, 63 sectors/track, 171009 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1      171009  1373629761   83  Linux

Any assistance would be appreciated.

Thanks
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