Table in "Current HDD Models that Employ a 4k Sectors"
In this section there is no hint about which way/tool is used to find out the Reported sector size. My hard disk information was obtained by:
# hdparm -I /dev/wd-hard_disk
I read somewhere that one can also look at /sys/block/wd-hard_disk/queue/hw_sector_size, which reports only 512.
Also, I don't undestand the order of disks in the table (not sorted by Manufacturer, not by Capacity) so I simply added mine on top. 6arms1leg 17:05, 26 March 2012 (EDT)
# parted /dev/wd-hard_disk print
- also gives me:
Sector size (logical/physical): 512B/512B
- 6arms1leg 10:53, 27 March 2012 (EDT)
I am worried that my server hard disk crash and will not be able to get a 512 Sectors hard disk from the market. Recently, I went shopping for a new disk. All new disks from Western Digital and Seagate have AF (advanced format) label. I bought Seagate 2TB, model ST2000DM001. Its date of manufacture is May 2012. No luck, it is 4096/4096 logical/physical. Fedora 17 can be installed to it but cannot write to its MBR.
My solution was mounting the disk to / and mounting a flash memory sandisk with a ext4 partition to /boot. During installation, F17 writes boot sector to mbr of / disk. To write to mbr of /boot disk, use F17 to rescue. The following commands were used to write to mbr of /boot disk:
- chroot /mnt/sysimage
- grub2-install /dev/sdx
where sdx is the sandisk.
These take away my worry as sandisk sectors are 512. They are available in the market.