[gpfsug-discuss] gpfsug-discuss Digest, Vol 87, Issue 21
IBM Spectrum Scale
scale at us.ibm.com
Fri Apr 26 07:44:58 BST 2019
From my understanding, your interpretation is correct.
Regards, The Spectrum Scale (GPFS) team
------------------------------------------------------------------------------------------------------------------
If you feel that your question can benefit other users of Spectrum Scale
(GPFS), then please post it to the public IBM developerWroks Forum at
https://www.ibm.com/developerworks/community/forums/html/forum?id=11111111-0000-0000-0000-000000000479.
If your query concerns a potential software error in Spectrum Scale (GPFS)
and you have an IBM software maintenance contract please contact
1-800-237-5511 in the United States or your local IBM Service Center in
other countries.
The forum is informally monitored as time permits and should not be used
for priority messages to the Spectrum Scale (GPFS) team.
From: Prasad Surampudi <prasad.surampudi at theatsgroup.com>
To: "gpfsug-discuss at spectrumscale.org"
<gpfsug-discuss at spectrumscale.org>
Date: 04/24/2019 12:17 AM
Subject: Re: [gpfsug-discuss] gpfsug-discuss Digest, Vol 87, Issue 21
Sent by: gpfsug-discuss-bounces at spectrumscale.org
I am trying to analyze a filehist report of a Spectrum Scale filesystem I
recently collected. Given below is the data and I have put my
interpretation in parentheses. Could someone from Sale development review
and let me know if my interpretation is correct? Filesystem block size is
16 MB and system pool block size is 256 KB.
GPFS Filehist report for Test Filesystem
All: Files = 38,808,641 (38 Million Total Files)
All: Files in inodes = 8153748
Available space = 1550139596472320 1550140 GB 1550
TB
Total Size of files = 1110707126790022
Total Size of files in inodes = 26008177568
Total Space = 1123175375306752 1123175 GB 1123
TB
Largest File = 3070145200128 - ( 2.8 TB)
Average Size = 28620098 – ( 27 MB )
Non-zero: Files = 38642491
Average NZ size = 28743155
Directories = 687233 (Total Number of
Directories)
Directories in inode = 650552
Total Dir Space = 5988433920
Avg Entries per dir = 57.5 (Avg # files per Directory)
Files with indirect blocks = 181003
File%ile represents the cummulative percentage of files.
Space%ile represents the cummulative percentage of total space used.
AvlSpc%ile represents the cummulative percentage used of total available
space.
Histogram of files <= one 16M block in size
Subblocks Count File%ile Space%ile AvlSpc%ile
--------- -------- ---------- ---------- ----------
0 7,669,346 19.76% 0.00% 0.00% ( ~7 Million files
<= 512 KB )
1 25,548,588 85.59% 1.19% 0.86% - ( ~25 Million
files > 512 KB <= 1 MB )
2 1,270,115 88.87% 1.31% 0.95% - (~1 Million files
> 1 MB <= 1.5 MB )
....
....
....
32 10387 97.37% 2.43% 1.76%
Histogram of files with N 16M blocks (plus end fragment)
Blocks Count File%ile Space%ile AvlSpc%ile
--------- -------- ---------- ---------- ----------
1 177550 97.82% 2.70% 1.95% ( ~177 K files <= 16
MB)
....
....
....
100 640 99.77% 17.31% 12.54%
Number of files with more than 100 16M blocks
101+ 88121 100.00% 100.00% 72.46% ( ~88 K files > 1600
MB)
_______________________________________________
gpfsug-discuss mailing list
gpfsug-discuss at spectrumscale.org
https://urldefense.proofpoint.com/v2/url?u=http-3A__gpfsug.org_mailman_listinfo_gpfsug-2Ddiscuss&d=DwICAg&c=jf_iaSHvJObTbx-siA1ZOg&r=IbxtjdkPAM2Sbon4Lbbi4w&m=uBqBwHtxxGncMVk3Suv2icRbZNIqzOgMlfJ6LnIqNhc&s=WdJyzA9yDIx3Cyj6Kg-LvXKTj8ED4J7wm_5wJ6iyccg&e=
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20190426/6133351f/attachment-0002.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: graycol.gif
Type: image/gif
Size: 105 bytes
Desc: not available
URL: <http://gpfsug.org/pipermail/gpfsug-discuss_gpfsug.org/attachments/20190426/6133351f/attachment-0002.gif>
More information about the gpfsug-discuss
mailing list