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Full Discussion: 3320 Disk Array Configuration for Oracle 10
Operating Systems Solaris 3320 Disk Array Configuration for Oracle 10 Post 302297497 by StarSol on Friday 13th of March 2009 03:11:29 PM
Old 03-13-2009
3320 Disk Array Configuration for Oracle 10
We have a dual-controller StorEdge 3320 disk array with 5 disks (each 320 MB). Four disks have been set up in a RAID-5 configuration with the remaining disk acting as a hot spare. There is a single logical drive which has been partitioned into 3 slices.

The disk array is to be simultaneously connected to two Sun hosts in order to act as database storage for 2-node Oracle 10g RAC configuration. Each host needs to be able to see 3 disks (i.e. logical drive partitions) on the 3320 and have read/write access to those disks.

The disk array has been cabled in a single-bus configuration (as per Sun StorEdge 3000 Family Installation, Operation, and Service Manual, part # 819-1274-12):

· SCSI jumper cable connected between the “CH0” port and the “SNGL BUS CONF” port.
· “CH3” port goes to one host.
· “CH1” port goes to the other host.

The following is the view from the host side (c4t0d<x> entries). It is the same for both hosts:

format

Searching for disks...done


AVAILABLE DISK SELECTIONS:

0. c1t0d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
/pci@1c,600000/scsi@2/sd@0,0
1. c1t1d0 <SUN146G cyl 14087 alt 2 hd 24 sec 848>
/pci@1c,600000/scsi@2/sd@1,0
2. c4t0d0 <SUN-StorEdge3320-415G cyl 998 alt 2 hd 64 sec 32>
/pci@1d,700000/scsi@1,1/sd@0,0
3. c4t0d1 <SUN-StorEdge3320-415G cyl 52061 alt 2 hd 64 sec 64>
/pci@1d,700000/scsi@1,1/sd@0,1
4. c4t0d2 <SUN-StorEdge3320-415G cyl 52061 alt 2 hd 64 sec 64>
/pci@1d,700000/scsi@1,1/sd@0,2
Specify disk (enter its number):

We have had some disk access issues with our Oracle RAC configuration, I would like to know whether this is a valid configuration, in particular the LUN and channel mappings.

Does anyone have experience in such architecture that can provide some guidance and/or refer to some useful documents? Sun documents do not give much useful information when it comes to using Oracle using such architecture.
 

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LEARN ABOUT NETBSD

audiocfg

AUDIOCFG(1)						    BSD General Commands Manual 					       AUDIOCFG(1)

NAME

     audiocfg -- configure default audio device

SYNOPSIS

     audiocfg list
     audiocfg default index
     audiocfg test index

DESCRIPTION

     The audiocfg utility helps maintaining the audio and mixer device symlinks.

     Run with ``list'', it lists the available audio devices and shows the currently selected default audio device.  Called with ``test'', it
     plays a tone of 2 seconds for each channel of the device with the index index.  Called with ``default'', it sets the default audio device to
     the one with the index index.

     audiocfg needs access to /dev/drvctl and write access to /dev (when used with ``default'') to work.

FILES

     /dev/audio  Symlink to default audio device.

     /dev/audio[0-9]*
		 Available audio devices.

     /dev/audioctl
		 Symlink to default audio control device.

     /dev/audioctl[0-9]*
		 Available audio control devices.

     /dev/drvctl
		 Used for finding the corresponding audio driver to an audio device.

     /dev/mixer  Symlink to default mixer device.

     /dev/mixer[0-9]*
		 Available mixer devices.

     /dev/sound  Symlink to default audio device (for the difference to /dev/audio, see audio(4)).

     /dev/sound[0-9]*
		 Available audio devices.

SEE ALSO

     audioplay(1), audiorecord(1), audio(4), drvctl(8)

BSD
								 September 1, 2010							       BSD
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