I need to install Centos on a machine with 3tb raid disk. (3 ware raid card) Could someone in the list suggest a utility for partition this disk. I would like to have the whole disk in 1 partition and format it for ext3. The default partitioning utility doesn't do this. The OS sits on another SATA disk and each time during the installation it doesn't format the full disk which is 3TB.
Could someone suggest another disk partitioning utility (other than fdisk) please?
Thanks
Rajeev R. Veedu
On Sun, 2007-09-23 at 21:43 +0400, Rajeev R Veedu wrote:
I need to install Centos on a machine with 3tb raid disk. (3 ware raid card) Could someone in the list suggest a utility for partition this disk. I would like to have the whole disk in 1 partition and format it for ext3. The default partitioning utility doesn’t do this. The OS sits on another SATA disk and each time during the installation it doesn’t format the full disk which is 3TB.
Could someone suggest another disk partitioning utility (other than fdisk) please?
use parted, and put a gpt label on your disk ... Then you'll be able to use a single ext3 filesystem
On Sun, 2007-09-23 at 21:43 +0400, Rajeev R Veedu wrote:
I need to install Centos on a machine with 3tb raid disk. (3 ware raid card) Could someone in the list suggest a utility for partition this disk. I would like to have the whole disk in 1 partition and format it for ext3. The default partitioning utility doesn’t do this. The OS sits on another SATA disk and each time during the installation it doesn’t format the full disk which is 3TB.
Try leaving the whole disk unpartitioned. Most *ix systems will work fine with raw dvices.
Then in your fstab, use /dev/hda or sda, etc. instead of had1, sda1, ...
I've not tried it, but I think LVM might be comfy with this too. But I don't know if they have put code demanding partition information into their software.
Could someone suggest another disk partitioning utility (other than fdisk) please?
I've seen gparted recommended on this list. Use google with the "site:centos.org" argument and you'll probably find the details.
<snip sig stuff>
HTH -- Bill
As William mentioned the easiest way is to format the drive after the fact.
Create an LVM and write it directly onto the drive. Things work great that way. I haven't tried formatting a raw device.
Shawn ----- Original Message ----- From: Rajeev R Veedu To: centos@centos.org Sent: Sunday, September 23, 2007 10:43 AM Subject: [CentOS] Formatting a large disk
I need to install Centos on a machine with 3tb raid disk. (3 ware raid card) Could someone in the list suggest a utility for partition this disk. I would like to have the whole disk in 1 partition and format it for ext3. The default partitioning utility doesn't do this. The OS sits on another SATA disk and each time during the installation it doesn't format the full disk which is 3TB.
Could someone suggest another disk partitioning utility (other than fdisk) please?
Thanks
Rajeev R. Veedu
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On 9/23/07, Rajeev R Veedu rajeev@cracknell.com wrote:
I need to install Centos on a machine with 3tb raid disk. (3 ware raid card) Could someone in the list suggest a utility for partition this disk.
We recently installed CentOS 5 on a pair of machines with 2.5TB RAIDs and the only way we could get it to work was to use LVM on the raw disk. I didn't do it myself so I don't recall all the details, but the gist of it was that in any other partition the tools would not increase the block size above 512, so it was not possible to allocate enough cylinders to fill the disk. (The size could be set to > 512 but then when the partition was created it always ignored the setting and used 512, or something to that effect.)
fdisk -l output:
Disk /dev/sdc: 2494.9 GB, 2494992220160 bytes 255 heads, 63 sectors/track, 151666 cylinders Units = cylinders of 16065 * 1024 = 16450560 bytes
Disk /dev/sdc doesn't contain a valid partition table
I don't know whether gparted would have enabled some different magic, I'm not sure anyone here tried using it.
On 9/23/07, Bart Schaefer barton.schaefer@gmail.com wrote:
gist of it was that in any other partition the tools would not increase the block size above 512
Sorry for the self-follow-up ... but I meant "sector size" there, not "block".
On Sun, 2007-09-23 at 11:30 -0700, Bart Schaefer wrote:
On 9/23/07, Bart Schaefer barton.schaefer@gmail.com wrote:
gist of it was that in any other partition the tools would not increase the block size above 512
Sorry for the self-follow-up ... but I meant "sector size" there, not "block".
IIRC, sector size is controlled at the hardware level(used to be set with jumpers and/or low-level format programs?). I seem to recall that new drives don't really have "sectors" anymore, but have supporting circuits/(EE)proms that emulate that?
I've never seen a sector size that could be set by a partioning program.
But I've certainly not seen *everything*.
<snip sig stuff>
-- Bill
Gparted and partion magic will do it. Windows will do it if you format via the disk management console.
Geoff
Sent from my BlackBerry wireless handheld.
-----Original Message----- From: "William L. Maltby" CentOS4Bill@triad.rr.com
Date: Sun, 23 Sep 2007 14:43:48 To:CentOS General List centos@centos.org Subject: Re: [CentOS] Formatting a large disk
On Sun, 2007-09-23 at 11:30 -0700, Bart Schaefer wrote:
On 9/23/07, Bart Schaefer barton.schaefer@gmail.com wrote:
gist of it was that in any other partition the tools would not increase the block size above 512
Sorry for the self-follow-up ... but I meant "sector size" there, not "block".
IIRC, sector size is controlled at the hardware level(used to be set with jumpers and/or low-level format programs?). I seem to recall that new drives don't really have "sectors" anymore, but have supporting circuits/(EE)proms that emulate that?
I've never seen a sector size that could be set by a partioning program.
But I've certainly not seen *everything*.
<snip sig stuff>
-- Bill
_______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
William L. Maltby wrote:
IIRC, sector size is controlled at the hardware level(used to be set with jumpers and/or low-level format programs?). I seem to recall that new drives don't really have "sectors" anymore, but have supporting circuits/(EE)proms that emulate that?
no, sectors are still 512 bytes (plus ECC and header info) on the physical disk. its the 'heads' and 'cylinders' that are abstracted. there's still heads and cylinders, its just that different zones of the disk have differing sector/track counts.
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of John R Pierce Sent: Monday, September 24, 2007 1:16 AM To: CentOS mailing list Subject: Re: [CentOS] Formatting a large disk
William L. Maltby wrote:
IIRC, sector size is controlled at the hardware level(used to be set with jumpers and/or low-level format programs?). I seem to recall that new drives don't really have "sectors" anymore, but have supporting circuits/(EE)proms that emulate that?
no, sectors are still 512 bytes (plus ECC and header info) on the physical disk. its the 'heads' and 'cylinders' that are abstracted. there's still heads and cylinders, its just that different zones of the disk have differing sector/track counts.
I got a Gparted live CD and tried to create a partition for 3tb but still the maximum size of partition I could create is 0.75gb. it shows 2.0tb space as unused but If I add another partition it doesn't take(it says no empty cylinders). The version I am tiring to install is centos5.
Thanks
Rajeev
Rajeev R Veedu wrote:
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of John R Pierce Sent: Monday, September 24, 2007 1:16 AM To: CentOS mailing list Subject: Re: [CentOS] Formatting a large disk
William L. Maltby wrote:
IIRC, sector size is controlled at the hardware level(used to be set with jumpers and/or low-level format programs?). I seem to
recall that
new drives don't really have "sectors" anymore, but have supporting circuits/(EE)proms that emulate that?
no, sectors are still 512 bytes (plus ECC and header info) on the physical disk. its the 'heads' and 'cylinders' that are
abstracted.
there's still heads and cylinders, its just that different
zones of the
disk have differing sector/track counts.
I got a Gparted live CD and tried to create a partition for 3tb but still the maximum size of partition I could create is 0.75gb. it shows 2.0tb space as unused but If I add another partition it doesn't take(it says no empty cylinders). The version I am tiring to install is centos5.
For a volume that large you should really use LVM.
-Ross
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On Monday 24 September 2007, Rajeev R Veedu wrote: ...
I got a Gparted live CD and tried to create a partition for 3tb but still the maximum size of partition I could create is 0.75gb.
Just using parted or gparted is not enough, you need to use a gpt, not a traditional "dos"-style, partition table.
Worth noting, you can't (easily) boot from a gpt drive...
/Peter
I had this same issue with 'fdisk' when I installed it on a server with 12TB of space RAID'd down to 6TB. Just use 'parted' and it will solve your problems.
http://www.gnu.org/software/parted/manual/
On Sep 23, 2007, at 1:43 PM, Rajeev R Veedu wrote:
I need to install Centos on a machine with 3tb raid disk. (3 ware raid card) Could someone in the list suggest a utility for partition this disk. I would like to have the whole disk in 1 partition and format it for ext3. The default partitioning utility doesn’t do this. The OS sits on another SATA disk and each time during the installation it doesn’t format the full disk which is 3TB.
Could someone suggest another disk partitioning utility (other than fdisk) please?
Thanks
Rajeev R. Veedu
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Rajeev R Veedu -
Ross S. W. Walker -
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William L. Maltby