On 7/25/2011 4:26 PM, John R Pierce wrote:
On 07/25/11 2:17 PM, Les Mikesell wrote:
The disk I want to add is the same size as the existing disks if expressed in 512 byte sectors - and they have one partition taking all of the disk space. If I add a leading offset to get the 4k alignment, there won't be enough room for the existing partition size.
you sure its that tight? different brand and model 1TB (or whatever) drives vary all over the place in actual size. generally newer ones are a hair bigger than older ones. you need at most 7 sectors to achieve 4 kilobyte alignment.
The full sized disks are Seagates:
Host: scsi7 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: ST3750640NS Rev: 3.AE and fdisk sees this: Disk /dev/sdh: 750.1 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
The 2.5" ones are WD's: Host: scsi9 Channel: 00 Id: 00 Lun: 00 Vendor: ATA Model: WDC WD7500BPVT-0 Rev: 01.0 Type: Direct-Access ANSI SCSI revision: 05 fdisk: Disk /dev/sdi: 750.1 GB, 750156374016 bytes 255 heads, 63 sectors/track, 91201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes
Don't see any extra space there unless you can shift the partition start forwards.
There's a very new 1 TB drive that might fit in the swappable bays (a cute little thing that fits 2 in a floppy drive space), but when I got these 750Gb was as large as you could go without adding extra height.