Re: standard performance (write speed 20Mb/s)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 7/20/2011 3:17 PM, Mathias Burén wrote:

> FWIW this is my RAID6 setup:
> 
> $ sudo fdisk -l /dev/sd[b,c,d,e,f,g,h]
> Password:

Are these indeed advanced format drives?  You didn't provide model#s or
manufacturer product line.  The only clue we have that they might be AF
drives is the 2048 offset you created.  Unless I simply missed it.

> Disk /dev/sdb: 2000.4 GB, 2000398934016 bytes
> 81 heads, 63 sectors/track, 765633 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x0e5b3a7a
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdb1            2048  3907029167  1953513560   fd  Linux raid
> autodetect
> 
> Disk /dev/sdc: 2000.4 GB, 2000398934016 bytes
> 81 heads, 63 sectors/track, 765633 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x4fc36d54
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdc1            2048  3907029167  1953513560   fd  Linux raid
> autodetect
> 
> Disk /dev/sdd: 2000.4 GB, 2000398934016 bytes
> 81 heads, 63 sectors/track, 765633 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x9e716ecb
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdd1            2048  3907029167  1953513560   fd  Linux raid
> autodetect
> 
> Disk /dev/sde: 2000.4 GB, 2000398934016 bytes
> 81 heads, 63 sectors/track, 765633 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x629ab77f
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sde1            2048  3907029167  1953513560   fd  Linux raid
> autodetect
> 
> Disk /dev/sdf: 2000.4 GB, 2000398934016 bytes
> 123 heads, 18 sectors/track, 1764692 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x3d454f20
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdf1            2048  3907029167  1953513560   fd  Linux raid
> autodetect
> 
> Disk /dev/sdg: 2000.4 GB, 2000398934016 bytes
> 81 heads, 63 sectors/track, 765633 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x918fae9f
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdg1            2048  3907029167  1953513560   fd  Linux raid
> autodetect
> 
> Disk /dev/sdh: 2000.4 GB, 2000398934016 bytes
> 123 heads, 18 sectors/track, 1764692 cylinders, total 3907029168 sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x0ac81a1b
> 
>    Device Boot      Start         End      Blocks   Id  System
> /dev/sdh1            2048  3907029167  1953513560   fd  Linux raid
> autodetect

-- 
Stan
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux RAID Wiki]     [ATA RAID]     [Linux SCSI Target Infrastructure]     [Linux Block]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device Mapper]     [Device Mapper Cryptographics]     [Kernel]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Yosemite Forum]


  Powered by Linux