Re: Partitioning >2.2 TB drives

["Robert G. (Doc) Savage" <dsavage@peaknet.net>]

On Sat, 2013-04-27 at 12:35 -0700, Michael Granito wrote:
> Doc,
> 
> It could very well be an issue with USB adapter. Is there any way you
> could use esata?

Michael,

I should have thought of that. I have a Thermaltake BlacX eSATA+USB2
external "toaster", and with it gparted sees 3.64 TiB and can install a
GPT partition table. It takes 25 minutes to create an ext4 filesystem.

        # gdisk -l /dev/sda
        GPT fdisk (gdisk) version 0.8.4
        
        Partition table scan:
          MBR: protective
          BSD: not present
          APM: not present
          GPT: present
        
        Found valid GPT with protective MBR; using GPT.
        Disk /dev/sda: 7814037168 sectors, 3.6 TiB
        Logical sector size: 512 bytes
        Disk identifier (GUID): A69992CB-B312-429F-A287-093EE78B5AB5
        Partition table holds up to 128 entries
        First usable sector is 34, last usable sector is 7814037134
        Partitions will be aligned on 8-sector boundaries
        Total free space is 5070 sectors (2.5 MiB)
        
        Number  Start (sector)    End (sector)  Size       Code  Name
           1              34      7814032064   3.6 TiB     0700  

        # df /mnt
        Filesystem           1K-blocks      Used Available Use% Mounted on
        /dev/sda1            3845708116    200704 3650156612   1% /mnt
        
        # df -h /mnt
        Filesystem            Size  Used Avail Use% Mounted on
        /dev/sda1             3.6T  196M  3.4T   1% /mnt

If my math is correct, with these drives a fully-loaded Backblaze would
have a capacity of about 133 TB. I'm also guessing it would weigh
something like 80 lbs.

--Doc


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