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When things go wrong! :o
So HP comes out to install a new jukebox autoloader...everything went pretty good until we reboot the box and see how our alternate links are shot! Also, more amusing, is the 'ioscan -fnC autoch':
Code:
usgo0003/dev/vg01 # ioscan -fnC autoch
Class I H/W Path Driver S/W State H/W Type Description
=====================================================================
autoch 0 0/0/1/0.0.0 schgr CLAIMED DEVICE HP C7145-8000
/dev/ac/c0t0d0_10a /dev/ac/c0t0d0_17b /dev/ac/c0t0d0_24a /dev/ac/c0t0d0_30b /dev/ac/c0t0d0_8a /dev/rac/c0t0d0_15a /dev/rac/c0t0d0_21b /dev/rac/c0t0d0_29a /dev/rac/c0t0d0_5b
/dev/ac/c0t0d0_10b /dev/ac/c0t0d0_18a /dev/ac/c0t0d0_24b /dev/ac/c0t0d0_31a /dev/ac/c0t0d0_8b /dev/rac/c0t0d0_15b /dev/rac/c0t0d0_22a /dev/rac/c0t0d0_29b /dev/rac/c0t0d0_6a
/dev/ac/c0t0d0_11a /dev/ac/c0t0d0_18b /dev/ac/c0t0d0_25a /dev/ac/c0t0d0_31b /dev/ac/c0t0d0_9a /dev/rac/c0t0d0_16a /dev/rac/c0t0d0_22b /dev/rac/c0t0d0_2a /dev/rac/c0t0d0_6b
/dev/ac/c0t0d0_11b /dev/ac/c0t0d0_19a /dev/ac/c0t0d0_25b /dev/ac/c0t0d0_32a /dev/ac/c0t0d0_9b /dev/rac/c0t0d0_16b /dev/rac/c0t0d0_23a /dev/rac/c0t0d0_2b /dev/rac/c0t0d0_7a
/dev/ac/c0t0d0_12a /dev/ac/c0t0d0_19b /dev/ac/c0t0d0_26a /dev/ac/c0t0d0_32b /dev/rac/c0t0d0 /dev/rac/c0t0d0_17a /dev/rac/c0t0d0_23b /dev/rac/c0t0d0_30a /dev/rac/c0t0d0_7b
/dev/ac/c0t0d0_12b /dev/ac/c0t0d0_1a /dev/ac/c0t0d0_26b /dev/ac/c0t0d0_3a /dev/rac/c0t0d0_10a /dev/rac/c0t0d0_17b /dev/rac/c0t0d0_24a /dev/rac/c0t0d0_30b /dev/rac/c0t0d0_8a
/dev/ac/c0t0d0_13a /dev/ac/c0t0d0_1b /dev/ac/c0t0d0_27a /dev/ac/c0t0d0_3b /dev/rac/c0t0d0_10b /dev/rac/c0t0d0_18a /dev/rac/c0t0d0_24b /dev/rac/c0t0d0_31a /dev/rac/c0t0d0_8b
/dev/ac/c0t0d0_13b /dev/ac/c0t0d0_20a /dev/ac/c0t0d0_27b /dev/ac/c0t0d0_4a /dev/rac/c0t0d0_11a /dev/rac/c0t0d0_18b /dev/rac/c0t0d0_25a /dev/rac/c0t0d0_31b /dev/rac/c0t0d0_9a
/dev/ac/c0t0d0_14a /dev/ac/c0t0d0_20b /dev/ac/c0t0d0_28a /dev/ac/c0t0d0_4b /dev/rac/c0t0d0_11b /dev/rac/c0t0d0_19a /dev/rac/c0t0d0_25b /dev/rac/c0t0d0_32a /dev/rac/c0t0d0_9b
/dev/ac/c0t0d0_14b /dev/ac/c0t0d0_21a /dev/ac/c0t0d0_28b /dev/ac/c0t0d0_5a /dev/rac/c0t0d0_12a /dev/rac/c0t0d0_19b /dev/rac/c0t0d0_26a /dev/rac/c0t0d0_32b
/dev/ac/c0t0d0_15a /dev/ac/c0t0d0_21b /dev/ac/c0t0d0_29a /dev/ac/c0t0d0_5b /dev/rac/c0t0d0_12b /dev/rac/c0t0d0_1a /dev/rac/c0t0d0_26b /dev/rac/c0t0d0_3a
/dev/ac/c0t0d0_15b /dev/ac/c0t0d0_22a /dev/ac/c0t0d0_29b /dev/ac/c0t0d0_6a /dev/rac/c0t0d0_13a /dev/rac/c0t0d0_1b /dev/rac/c0t0d0_27a /dev/rac/c0t0d0_3b
/dev/ac/c0t0d0_16a /dev/ac/c0t0d0_22b /dev/ac/c0t0d0_2a /dev/ac/c0t0d0_6b /dev/rac/c0t0d0_13b /dev/rac/c0t0d0_20a /dev/rac/c0t0d0_27b /dev/rac/c0t0d0_4a
/dev/ac/c0t0d0_16b /dev/ac/c0t0d0_23a /dev/ac/c0t0d0_2b /dev/ac/c0t0d0_7a /dev/rac/c0t0d0_14a /dev/rac/c0t0d0_20b /dev/rac/c0t0d0_28a /dev/rac/c0t0d0_4b
/dev/ac/c0t0d0_17a /dev/ac/c0t0d0_23b /dev/ac/c0t0d0_30a /dev/ac/c0t0d0_7b /dev/rac/c0t0d0_14b /dev/rac/c0t0d0_21a /dev/rac/c0t0d0_28b /dev/rac/c0t0d0_5a
Whoaaa, look at all that stuff, yeah! Something tells me our scsi addressing is *****ed up...
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Maybe I am just an idiot, but uhmm.....WTF
Or maybe this programming class I am taking has only just begun and This type o shyt hasnt been covered yet. Maybe you could break it down for me Vorlin....please
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/dev is where your devices are stored.. i.e. hard drives, floppy drives, keyboard, etc etc. Anything that performs i/o. Well, it looks like vorlin has about 200 cd rom drives if I am not mistaken...Either that, or about 200 partions on 1 hard drive.... I think he is runnin HPuX, and I haven't used it in a while, so I am not exactly sure what the c0t0d0 device is....
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c0t0d0 stands for the first disk device on the first controller.
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Thanks crittenden....makes sence c(ontroler)0t(????)0d(rive)0. So what is the t?
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You know, I dont know. Sorry. I need to find out real soon though. Gotta reinstall an old HP9000 with HP-UX 10.20.
O joy.
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c -> controller
t -> target ID
d -> disk number
Basically the C and T together consitute the address of the disk on the controller - at least that's my understanding.
