It’s good you are at 50% aggr usage, as you’ll need
50% free space in each volume you run the reallocate on. I think running
the reallocate is the best first step as it is fairly un-intrusive and you can
run it during the day unless you are hammering the filer constantly. When
we run it we use the parameter –f to force reallocation without caring
how well it is already laid out. Not sure about your question on
A-SIS.
HTH,
- Hadrian
From: owner-toasters@mathworks.com
[mailto:owner-toasters@mathworks.com] On Behalf Of Page, Jeremy
Sent: Thursday, June 05, 2008 7:13 AM
To: toasters@mathworks.com
Subject: RE: How to identify a hot disk
Thu Jun 5 10:06:02 EDT [gvr-array02:
wafl.scan.layout.advise:info]: WAFL layout ratio for volume nfs2 is 4.01. A
ratio of 1 is optimal. Based on your free space, 1.42 is expected.
Would you say I need to do a reallocate? I’m not sure why
this is so fragmented, this file system has never been more then 50% full,
could A-SIS have something to do with it?
Jeremy M. Page____________________
Systems Architect
* email:Jeremy.Page@gilbarco.com - ( phone: 336.547.5399 - 6 fax: 336.547.5163 - ( cell: 336.601.7274
From: Uddhav Regmi
[mailto:uddhav.regmi@worldnet.att.net]
Sent: Thursday, June 05, 2008 9:38 AM
To: Page, Jeremy; toasters@mathworks.com
Subject: RE: How to identify a hot disk
hmmm
very interesting....
looks like those are max out
do wafl scan measure layout and see where you stand....
if needed do reallocate.....
I have seen hundreds of cases where it helped a lot
-uddhav
From:
owner-toasters@mathworks.com [mailto:owner-toasters@mathworks.com] On Behalf
Of Page, Jeremy
Sent: Thursday, June 05, 2008 8:27 AM
To: toasters@mathworks.com
Subject: Re: How to identify a hot disk
Not sure why but I have two disks that are maxed out while the
rest are far lower utilization. What would cause this, the raid groups where
created all at the same time, there are 10 disks per raid group and 3 groups in
the aggragate.
/aggr0/plex0/rg0:
1c.16
2 0.94 0.18 1.00 42250
0.49 12.18 1396 0.27 11.83
521 0.00 .... .
0.00 .... .
1c.32
6 2.56 0.49 1.00 104545
1.80 4.18 1323 0.27 11.83
634 0.00 .... .
0.00 .... .
1c.48
98 116.05 114.20 1.62 18481 1.53
4.24 1743 0.31 11.00 2649
0.00 .... . 0.00
.... .
1c.17
41 55.21 54.76 2.17 5697
0.27 20.17 1537 0.18 16.25
600 0.00 .... .
0.00 .... .
1c.33
49 72.07 71.62 1.84 4760
0.27 20.67 871 0.18 16.75
1239 0.00 .... .
0.00 .... .
1c.49
45 61.42 60.97 2.18 4047
0.22 23.00 913 0.22 14.40
931 0.00 .... .
0.00 .... .
1c.64
5 117.40 116.86 1.61 307 0.36
15.25 1336 0.18 18.00 319
0.00 .... . 0.00
.... .
1c.65
4 71.76 71.17 1.83 292
0.27 20.67 1298 0.31 10.43
370 0.00 .... .
0.00 .... .
1c.80
4 49.50 49.05 2.36 333
0.22 22.80 1333 0.22 14.60
712 0.00 .... .
0.00 .... .
1c.81
5 95.14 94.69 1.71 292
0.22 22.80 1325 0.22 14.60
548 0.00 .... .
0.00 .... .
/aggr0/plex0/rg1:
1c.66
1 0.67 0.00 ....
. 0.31 19.29 1311 0.36
10.50 238 0.00 ....
. 0.00 .... .
1c.83
1 0.67 0.00
.... . 0.31 19.29
1415 0.36 10.50 190 0.00
.... . 0.00
.... .
1c.82
4 48.60 48.24 2.21 320
0.22 22.80 1553 0.13 21.33
234 0.00 .... .
0.00 .... .
1c.19
51 67.89 67.44 1.92 5315
0.22 22.80 1281 0.22 13.20
788 0.00 .... .
0.00 .... .
1c.18
55 72.75 72.34 1.90 4996
0.22 23.00 1122 0.18 16.00
1109 0.00 .... .
0.00 .... .
1c.35
30 36.10 35.52 2.67 3190
0.31 15.86 1802 0.27 11.33
588 0.00 .... .
0.00 .... .
1c.34
41 52.97 52.43 2.04 4207
0.31 16.29 1570 0.22 13.60
750 0.00 .... .
0.00 .... .
1c.51
100 119.82 119.46 1.57 25873 0.22
22.80 1588 0.13 21.33 2313
0.00 .... . 0.00
.... .
1c.50
59 72.03 71.44 1.83 7750
0.27 19.33 1233 0.31 10.86 1289
0.00 .... . 0.00
.... .
1c.67
4 94.60 94.15 1.68 279
0.18 24.50 1071 0.27 12.33
338 0.00 .... .
0.00 .... .
/aggr0/plex0/rg2:
1c.85
1 0.94 0.00
.... . 0.54 12.00
1806 0.40 10.11 538 0.00
.... . 0.00
.... .
1c.84
1 0.94 0.00
.... . 0.54 12.00
1729 0.40 10.11 495 0.00
.... . 0.00
.... .
1c.21
47 67.40 66.90 1.86
4701 0.27 19.17 1452 0.22
14.20 845 0.00 ....
. 0.00 .... .
1c.20
56 73.56 73.02 1.79 4866
0.18 25.50 1039 0.36 9.63
870 0.00 .... .
0.00 .... .
1c.37
51 68.79
68.21 1.76 6072 0.27 19.17
1174 0.31 11.43 988 0.00
.... . 0.00
.... .
1c.36
42 50.85 50.18 2.31 3807
0.40 12.78 1852 0.27 13.33
800 0.00 .... .
0.00 .... .
1c.53
59
75.85 75.18 1.86 5024 0.36
14.25 2237 0.31 10.43 493
0.00 .... . 0.00
.... .
1c.52
18 21.27 20.77 3.83 2205
0.27 19.17 1496 0.22 14.20
465 0.00 .... . 0.00
.... .
1c.69
5 71.76 71.00 1.96 296
0.40 12.78 2087 0.36 9.63
610 0.00 .... .
0.00 .... .
1c.68
5 71.58 71.13 1.84 352
0.22 23.60 1314 0.22 14.80
514 0.00 .... .
0.00 .... .
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