Re: I/O question

["William A. Mahaffey III" <wam%hiwaay.net@localhost>]

On 08/04/15 07:56, William A. Mahaffey III wrote:
> On 08/04/15 04:56, Ian Clark wrote:
> > On 28 July 2015 at 23:52, William A. Mahaffey III <wam%hiwaay.net@localhost> 
> > wrote:
> > >
> > [anip]
> > > The RAID in question has 4 active drives, 1 parity drive & 1 spare, 
> > > created
> > > from identical ~900 GiB partitions on each of 6 7200 RPM 1 TB SATA3 
> > > HDD's.
> > What are your partition values (for the underlying drives), it sounds
> > like these aren't aligned correctly.
> >
> > (I have a 3x2TB SATA HDs in raid5 and your above command runs in 3 
> > seconds.
> >
> > Cheers,
> >
> > Ian
>
> I attach diskabel info from the install process for 1 of the six 
> drives. This output was created during the scripted setup & is 
> identical for all 6 drives except for HDD names. If you need more 
> info, please don't hesitate.

Still stuck here, any clues for me ? I re-attach the disklabel info for 
the underlying partitions ....

--

	William A. Mahaffey III

 ----------------------------------------------------------------------

	"The M1 Garand is without doubt the finest implement of war
	 ever devised by man."
                           -- Gen. George S. Patton Jr.

# /dev/rwd0d:
type: ESDI
disk: HGST HTS721010A9
label: disk0
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 1938021
total sectors: 1953525168
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0		# microseconds
track-to-track seek: 0	# microseconds
drivedata: 0 

6 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 a:  33554432      2048       RAID                     # (Cyl.      2*-  33290*)
 c: 1953523120      2048     unused      0     0        # (Cyl.      2*- 1938020)
 d: 1953525168         0     unused      0     0        # (Cyl.      0 - 1938020)
 e:  33554432  33556480       swap                     # (Cyl.  33290*-  66578*)
 f: 1886414256  67110912       RAID                     # (Cyl.  66578*- 1938020)