Hello All,
In the output of the command "mpdcontrol -no xlist", I found that, some of the preferred paths are marked as "err". You can see the output below:
# mpdcontrol -noxlist
Unit Dev# MPD_ID/Policy DeviceName FC_AL DevMajMin IOcnt State
==============================================================
0 0 mpd0 c16t0d0 - 32,1920 10150 opn enb prf
1 prefer c18t0d0 - 32,2160 0 opn enb
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1 0 mpd1 c16t0d1 - 32,2400 424 opn enb
1 prefer c18t0d1 - 32,3072 51714 opn enb prf
--------------------------------------------------------------------------------
2 0 mpd2 c16t0d2 - 32,2408 1888 opn enb prf
1 prefer c18t0d2 - 32,3080 0 opn enb
--------------------------------------------------------------------------------
3 0 mpd3 c16t0d3 - 32,2416 247 opn enb
1 prefer c18t0d3 - 32,3088 29714 opn enb prf
--------------------------------------------------------------------------------
4 0 mpd4 c16t0d10 - 32,2472 44936 opn enb prf
1 prefer c18t0d10 - 32,3144 0 opn enb
--------------------------------------------------------------------------------
5 0 mpd5 c17t1d0 - 32,2048 56 err
1 prefer c19t1d0 - 32,2288 87250 opn enb prf
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6 0 mpd6 c17t1d1 - 32,2904 41400 err prf
1 prefer c19t1d1 - 32,3576 11942 opn enb
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7 0 mpd7 c17t1d2 - 32,2912 56 err
1 prefer c19t1d2 - 32,3584 1832 opn enb prf
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8 0 mpd8 c17t1d3 - 32,2920 29409 err prf
1 prefer c19t1d3 - 32,3592 68081 opn enb
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9 0 mpd9 c17t1d10 - 32,2976 295 err
1 prefer c19t1d10 - 32,3648 44936 opn enb prf
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In this output we can see that some of the preferred paths were set to "err". So, those preferred paths were later changed to point to the normal disks.
Will changing of these settings result in any slowdown of the system?