[CentOS] Constant disk activity

dnk d.k.emaillists at gmail.com
Thu Mar 22 00:24:11 EDT 2012


Hi there,

I have an old server (home use now), and i just did a fresh install of 5.8 on it. But the disk is constantly noisy.

When running iotop, there is nothing blaring out at me.

(sample output)

 1722 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.10 % auditd
    3 be/7 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [ksoftirqd/0]
 1724 be/2 root        0.00 B/s    0.00 B/s  0.10 %  0.00 % audispd
   10 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [kblockd/0]
  103 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [khubd]
 2163 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd
 6265 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd: root at pts/1



169 be/4 root        0.00 B/s    0.00 B/s  0.00 %  2.82 % -bash
 1724 be/2 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % audispd
    3 be/7 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [ksoftirqd/0]
    7 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [kthread]
 2163 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd
 6265 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % sshd: root at pts


169 be/4 root        0.00 B/s    0.00 B/s  0.00 %  2.92 % -bash
 1722 be/3 root        0.00 B/s    0.00 B/s  0.00 %  0.78 % auditd
 2022 be/4 haldaemo    0.00 B/s    0.00 B/s  0.00 %  0.68 % hald
 1724 be/2 root        0.00 B/s    0.00 B/s  0.78 %  0.00 % audispd
    3 be/7 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % [ksoftirqd/0]
 2342 be/4 root        0.00 B/s    0.00 B/s  0.00 %  0.00 % mingetty tty1
   

And in nmon, the damn thing looks like it is doing nothing:

┌nmon─14g──────[H for help]───Hostname=home─────────Refresh= 2secs ───15:41.15────────────────────────────────────────────────────────────────────────────────────────────────────┐
│ Disk I/O ──/proc/diskstats────mostly in KB/s─────Warning:contains duplicates─────────────────────────────────────────────────────────────────────────                           │
│DiskName Busy  Read WriteKB|0          |25         |50          |75	   100|                                                                                                   │
│hda        0%    0.0    0.0|>                                                |                                                                                                   │
│hda1       0%    0.0    0.0|>                                                |                                                                        ───────────────────────────│
│hda2       0%    0.0    0.0|>                                                |                                                                                                   │
│sda        0%    0.0    0.0|>                                                |                                                                                                   │
│sda1       0%    0.0    0.0|>                                                |                                                                                                   │
│sdb        0%    0.0    0.0|>                                                |                                                                                                   │
│sdb1       0%    0.0    0.0|>                                                |                                                                                                   │
│dm-0       0%    0.0    0.0|>                                                |                                                                                                   │
│dm-1       0%    0.0    0.0|>                                                |                                                                                                   │
│Totals Read-MB/s=0.0      Writes-MB/s=0.0      Transfers/sec=0.0                                                                                                                 │
│─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────│
│                                                                                                                                                                                 │
│                                                                                                                                                                                 │
│                                                                                                                                                                                 │
│                                                                                                                                                                                 │
│                                                                                     

Any tips to quiet this thing down? The server is very low use. I read a few people suggest converting to ext 2, but I'm not so sure about htat,..

Any tips?

D







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