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Raid 5 Questions

 
Jay_167
Occasional Advisor

Raid 5 Questions

Hello Everyone,

I've recently been tasked to configure a DS20 as a raid 5. I'm very new to tru64 but pretty experienced in Solaris and Liunx so bare with me.
Can someone point me in the right direction on accomplishing this. Listed below is my setup.

DS20 running Tru64 V5.1A with internal 1 18.gb drive(OS installed on)

Storageworks 4254R(DS-SSL14-Rm) with 6 36.4GB drives (What I want to raid 5 for /data)

DS-KZPCC-XE LVD Raid Controller.

when I view the diskarray in sysman it shows the entire disk being 138929.500MB Should it show 218GB 36.4 x 6 =218GB

Like I said above basically need helpfull information to get me started.

Thanks

20 REPLIES 20
Johan Brusche
Honored Contributor

Re: Raid 5 Questions


In a raidset you always lose the equivalent of 1 drive for storing parity data, so
that should give you 5x 36,4=182GB.
The 139 GB you see is less than 4 drives, unless maybe a spare drive for auto-replacement is defined.

Didn't you get a StorageWorks Array SWCCAgent kit with the KZPCC ?

Did you run the config utility from console mode ?
>>> run bios pza0

Rgds,
__ Johan.

_JB_
Jay_167
Occasional Advisor

Re: Raid 5 Questions

Hey Johan,

Thanks for the reply. This system has been laying around the lab for about 2-3 years now, I'm not the original admin for this box so the person who initially set the system up threw all the media around the building so I guess I have to track down the SWCCAgent. Is there a way to see if the agent is installed??

When you say console mode do u mean the boot prom?? If so i haven't run that command
As far as finding out why I only see 139GB will this utility help me track this down?? Any other info would be great

Thanks
Jay
Matthew Pearce
Frequent Advisor

Re: Raid 5 Questions

to see if agent is installed you could try
# setld -i | grep -i swc
then
# setld -i
to view the file locations.

But you need to install additional software installed on a Win platform that can talk to the tru64 server, to be able to use it while online.

To configure it offline you need to #shutdown -h now
Then run the SMOR utility from the >>> boot prompt.

This link might help:
http://h18006.www1.hp.com/alphaserver/products/storage/kzpcc_ac.html

Q6: Is there a command line interface for KZPCC (like the RCU for KZPAC)?
A6: No. We have Alpha SMOR (via the console) for an off-line configuration utility and the SWCC for an on-line configuration utility.

Was a while ago, so that's about all I remember.
Jay_167
Occasional Advisor

Re: Raid 5 Questions

Ok I found the storageworks media, managed to get everything installed on the server and the remote pc. But for some reason I can't connect to the server. Here is the output of user.log:

KZPCCAgent has shutdown
KZPCCAgent V2.3.0.042 is starting
Attempting to start the process that sends Tc

Searching for supported controllers.
Subsystem i2o0_cp : Supported controller foun

Found 1 supported controller(s).
KZPCCAgent Applet Manager Responder has Start


From the client end. Trying to connect via KZPCC client:

Unable to connect, call to gethostbyaddr failed: vaild name, no data record or requested type.


The KZPCC client failed to connect to system .WSAECONNREFUSED: connection refused


Then I get progam memory errors. On the client I'm using a diff verion of SW to connect to client. Does somebody have the most recent version too see if that make a difference.

Thanks


Jay_167
Occasional Advisor

Re: Raid 5 Questions

I manged to configure the raid 5 via smor untility and mounted a advfs on it. Now I'm trying to play with the DLT-Tape(DS-BA356-RC) system thats also connected to the DS-KZPCC. I don't think I see it in hwgmgr but i'm not sure. What should I be looking for?? Any help please.

Thanks,

Jay
Matthew Pearce
Frequent Advisor

Re: Raid 5 Questions

Try shutting down the system again and ensure you can see the tape drive by doing >>> show dev
If it doesn't show there, it won't show in your OS hwmgr database and you may need to verify that this device is supported on the KZPCC.
Johan Brusche
Honored Contributor

Re: Raid 5 Questions


J.

Only 9.1 to 72 GB DISK drives
(Ultra2 speed 10k rpm) are supported, no tapedrives in the table.

__ Johan.

_JB_
Jay_167
Occasional Advisor

Re: Raid 5 Questions

I think i'm seeing the tape drive?? But don't know what to do now. Any Ideas??


bash-2.05b# hwmgr -show scsi

SCSI DEVICE DEVICE DRIVER NUM DEVICE FIRST
HWID: DEVICEID HOSTNAME TYPE SUBTYPE OWNER PATH FILE VALID PATH
-------------------------------------------------------------------------
63: 1 marley disk none 2 3 dsk1 [4/0/0]
64: 2 marley cdrom none 0 1 cdrom0 [2/0/0]
65: 0 marley tape none 0 1 (null)
67: 3 marley disk none 0 1 (null)
68: 4 marley disk none 0 1 (null)
69: 5 marley disk none 0 1 (null)
70: 6 marley disk none 0 1 (null)
71: 7 marley disk none 0 1 (null)
72: 8 marley disk none 0 1 (null)
74: 9 marley cdrom none 0 1 (null)



Johan Brusche
Honored Contributor

Re: Raid 5 Questions


The tape, you see there, is one that has been removed in the past, it has no valid path nor any special device files associated.

The command "hwmgr sho scsi -full -id 65"
will show you the details.

__ Johan.

_JB_