Re: Adding new disk to volume group

Geofrey Rainey wrote:
> Hi,
>
> Here are the steps you need to do (they should be fine, but
> Let me know if you have any issues, and the associated error
> Because I might have missed something):
>
> Step 1. create a partition on your new disk:
>
> # fdisk /dev/cciss/c0d1
>
> Once within fdisk, type the following (what you enter is between <> )
>
> Command (m for help): <n>
>
> Command action
> e extended
> p primary partition (1-4)
>
> <p>
>
> Partition number (1-4):
> <1>
>
> First cylinder (1- ...): <press enter to select default>
> Last cylinder ... : <press enter to select default>
>
> Now, you will find yourself back at the main prompt. You will want to
> now
> Change the partition's ID to Linux LVM
>
> Command (m for help): <t>
>
> Hex code (type L to list codes): <8e>
>
> <w> - to write the partition table.
>
> Now you should be back in the shell.
>
>
>
> Step 2. create a new physical volume:
>
> # pvcreate /dev/cciss/c0d1p1 (I think this is what it should be if you
> have only made one single partition on the new disk).
>
>
> Step 3. Add your new physical volume to your existing volume group
>
> # pvextend VolGroup00 /dev/cciss/c0d1p1

I think that should be vgextend

# vgextend -A VolGroup00 /dev/cciss/c0d1p1

> Assuming the above worked, if you now type "vgdisplay -v", you should
> see two
> physical volumes at the bottom of the output, and an increase in
> capacity of
> In the following line: "Free PE / Size 98 / 3.06 GB"
>
>
> Regards,
> Geofrey Rainey.
>
>
> -----Original Message-----
> From: Kory Wheatley [mailto:wheakory@isu.edu]
> Sent: Thursday, 27 September 2007 9:48 a.m.
> To: Geofrey Rainey
> Cc: General Red Hat Linux discussion list
> Subject: Re: Adding new disk to volume group
>
> fdisk -l
>
> Disk /dev/cciss/c0d0: 36.4 GB, 36414750720 bytes
> 255 heads, 32 sectors/track, 8716 cylinders Units = cylinders of 8160 *
> 512 = 4177920 bytes
>
> Device Boot Start End Blocks Id System
> /dev/cciss/c0d0p1 1 2 8144 4 FAT16
> <32M
> /dev/cciss/c0d0p2 * 3 52 204000 83 Linux
> /dev/cciss/c0d0p4 285 8716 34402560 f W95
> Ext'd (LBA)
> /dev/cciss/c0d0p5 285 8064 31742384 8e Linux
> LVM
> /dev/cciss/c0d0p6 8065 8578 2097104 82 Linux
> swap
>
> Disk /dev/cciss/c0d1: 36.4 GB, 36414750720 bytes
> 255 heads, 32 sectors/track, 8716 cylinders Units = cylinders of 8160 *
> 512 = 4177920 bytes
>
> Disk /dev/cciss/c0d1 doesn't contain a valid partition table
>
> [root@lx6 cciss]# vgdisplay -v
> Finding all volume groups
> Finding volume group "VolGroup00"
> Fixing up missing format1 size (30.27 GB) for PV /dev/cciss/c0d0p5
> --- Volume group ---
> VG Name VolGroup00
> System ID
> Format lvm2
> Metadata Areas 1
> Metadata Sequence No 7
> VG Access read/write
> VG Status resizable
> MAX LV 0
> Cur LV 5
> Open LV 5
> Max PV 0
> Cur PV 1
> Act PV 1
> VG Size 30.25 GB
> PE Size 32.00 MB
> Total PE 968
> Alloc PE / Size 870 / 27.19 GB
> Free PE / Size 98 / 3.06 GB
> VG UUID psKZl5-5omn-3pqG-S6Ip-i4wR-9OGc-7LSmbP
>
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol00
> VG Name VolGroup00
> LV UUID Sng7Z5-PTPx-snkr-nAzW-PkKz-LkUt-7TZTaS
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 4.00 GB
> Current LE 128
> Segments 1
> Allocation inherit
> Read ahead sectors 0
> Block device 253:0
>
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol01
> VG Name VolGroup00
> LV UUID nDG0HT-xL9G-xD9D-emyJ-g4mf-huCj-SOvgnz
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 5.00 GB
> Current LE 160
> Segments 2
> Allocation inherit
> Read ahead sectors 0
> Block device 253:1
>
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol02
> VG Name VolGroup00
> LV UUID P9cXHo-BttJ-IHgo-b8Vw-xPjM-ncxA-Vjcv08
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 1.00 GB
> Current LE 32
> Segments 1
> Allocation inherit
> Read ahead sectors 0
> Block device 253:2
>
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol03
> VG Name VolGroup00
> LV UUID lDHKwJ-Y0Lf-3SR4-NoNr-ZjN2-cH4O-B8718x
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 4.00 GB
> Current LE 128
> Segments 1
> Allocation inherit
> Read ahead sectors 0
> Block device 253:3
>
> --- Logical volume ---
> LV Name /dev/VolGroup00/LogVol04
> VG Name VolGroup00
> LV UUID jS7ech-ru2u-08JG-ulZp-sPbr-lfSV-2FsCCO
> LV Write Access read/write
> LV Status available
> # open 1
> LV Size 13.19 GB
> Current LE 422
> Segments 1
> Allocation inherit
> Read ahead sectors 0
> Block device 253:4
>
> --- Physical volumes ---
> PV Name /dev/cciss/c0d0p5
> PV UUID NTkXuW-R4CJ-HqxT-WYAp-hOjb-8YTB-1Fj0vL
> PV Status allocatable
> Total PE / Free PE 968 / 98
>
> One volume group was only setup "VolGroup00"
>
> Geofrey Rainey wrote:

>> Hello,
>>
>> Firstly, please answer these two questions:
>>
>> 1. what do you see with this command:
>>
>> # fdisk -l
>>
>> 2. How many volume groups do you have? (you can find this information 
>> With the following command. The -v flag will give more verbose output 
>> including the logical volumes associated with each volume group):
>>
>> # vgdisplay -v
>> 		
>> Regards,
>> Geofrey Rainey
>>
>> -----Original Message-----
>> From: redhat-list-bounces@redhat.com
>> [mailto:redhat-list-bounces@redhat.com] On Behalf Of Kory Wheatley
>> Sent: Thursday, 27 September 2007 8:51 a.m.
>> To: General Red Hat Linux discussion list
>> Subject: Adding new disk to volume group
>>
>> Currently I'm using Red Hat Enterprise 4 that has two disk on a 
>> Hardware Raid 1 (Smart Array 5i controller) that is setup in  a Volume

>> Group
>> (VolGroup00) with the following logical volumes LogVol00, LogVol01, 
>> LogVol02, LogVol03, LogVol04, and LogVol05.    I recently added two

>> disks in our system/server  (these are internal disks on a HP Proliant

>> DL380 g2) and set these disk as a Hardware Raid 1.  Now I haven't used

>> Fdisk or nothing on these new disks.
>>
>> Here's my question:  How do I add the new disks to the already 
>> existing Volume Group so that I can have more space on the Volume 
>> Group.  Being a
>> Raid1 I know your only adding one disk.  Could someone send me the 
>> exact commands to use?
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