Environment
Solaris 9 64-bit SunFire 280R connected to HP 220MX optical jukebox (1 drive
24 slots) with SE SCSI.
4096byte/sector HP rewritable optical disk (volume)
OTG software SM2.6
Problem description.
Error from GUI dxsem Monitor
Volume A00001 can not found in SCSI00
But when issue #readmap -a I can see this volume A00001 was configured in
the tapemap.
Checking the GUI dxsem "Tape/Drive Configuration" I can see this volume
A00001 as well.
I have tried to remove #/etc/SCSI00TABLE file and restart all DXUL services
to no avail.
Checking the #/usr/diskx/etc/vollblmap the volume was there.
Then I tried to configure a new volume B00002 to DXUL and my #readmap -a can
see this volume and remove volume A00001 same problem occur to my new volume
"Volume B00002 can not found in SCSI00"
I have reinstalled the SM2.6 software few time with a single volume
inserted, 2 volumes inserted and multiple volumes inserted. Let DXUL
formatting the volumes using the default label and so on but all failed.
What else can I do ? Why the software doesn't pick up volume from tapemap ?
Please help
Thanks
Robert
-----Original Message-----
From: Robert Loh
Sent: Tuesday, March 25, 2003 5:56 PM
To: 'Sumash Singh'
Cc: John Hope-Bailie; Robert Loh
Subject: RE: [Networker] OTG for unix
Hi Sumash,
Thanks for your great help, I have managed to get the DXSM up and running.
As u know human very be satisfied. They are asking for more and more, now
they want duplication which I believe is possible, I can make two copies
each time a file is migrated but they want exact copy of OD so that they can
move them offsite once a week. For example,
Media A ---> copy media A'
Media B ---> copy media B'
Media C ---> copy media C'
I know W2K DS2K can do this but how about DXUL ?
cheers...
Robert
-----Original Message-----
From: Sumash Singh [mailto:sumash AT sourceconsulting.co DOT za]
Sent: Thursday, March 20, 2003 7:10 PM
To: 'Robert Loh'
Cc: John Hope-Bailie
Subject: RE: [Networker] OTG for unix
Robert,
answers interleaved,
My questions are
1. How to label new OD to the jukebox ?
First you need to run a settape -u UNUSED 000000-1000000 to tell DX that the
allocated tapes are to be set to UNUSED. Sort of like telling NetWorker when
you add volumes into a silo. The following command physically loads up each
OD and labels them. You can of course script it for easier use.
tapelabel -m 4 /dev/rmt/0cn 000009 etc all the way to tapelabel -m 4
/dev/rmt/0cn 000019
2. How to create/mount a DiskXtender Filesystem on SM machine ?
a] Make sure the Solaris "mountd" (could be called "rpc.mountd") is NOT
running, firstly by killing it and secondly by commenting the line out of
the system startup script in /etc/rc3.d/S15nfsserver (or somewhere near
there anyway).
b] Make a really insecure (but very likely to work) exports file in
<DISKXTENDER>/etc/exports with the following contents. You can always
tighten up security and batten things down later.
/DISKXTENDER/ (rw,no_root_squash)
c] Stop and restart the whole of DiskXtender from scratch, using
"kill.diskxtender" to stop and then "rc.diskxtender" to start.
d] Run "showmount -e localhost" and you should see:
/DISKXTENDER/ *Any Host* or similar. If this step doesn't work, don't bother
proceeding, Email me your exports file and DiskXtender.conf file.
e] Try mounting the DX filesystem with something like this:
mount -o intr,vers=3,port=2050 localhost:/DISKXTENDER/ /hsm
Note the slashes around DISKXTENDER and spelling of DISKXTENDER above VERY
CAREFULLY !!!
3. Can we have more than one DiskXtender Filesystem on the same SM machine ?
Will look into this and get back to you later
4. Are we mounting disk cache or DiskXtender Filesystem on SM machine ?
Here what you are doing is effectively mounting up the diskcache as a NFS
share or FTP share. Think of SM as a FTP server or NFS server, rather than a
complete HSM. The reason why I say this is so that when you start mounting
the nfs share to other clients, you do not have to install the DXDM on any
hosts, nor on the SM server itself. remember that unless you want to take
data automatically from a localised filesystem and seamlessly move it to
HSM. Remember if you not keen on having your application write to a
Networked file system, because of performance of networks etc, then DXDM in
that case would be you better bet.
5. How to mount SM's DiskXtender Filesystem to clients ? Next to expore
Here again, very simple, get your disk cache shared as NFS but more simply
FTP and either have the application writre into that mount point or script
the data to move into that network space.
mount -f nfs -o intr,vers=3,port=2050 SMSERVER:/DISKXTENDER/
/hsm_mount_point_on_nfs_client
6. Do we need DXDM to install on the same machine which has DXSM installed ?
Not necessarily, see above for details
7. If for client DXDM setup, how to setup HSM FS
Its been a while since I setup DXDM, but the simplest way to explain it is
as follows:
Install DXDM on your "client" machine. Client machine can be any SUN system
on the network that has an existing filesystem which hosts application data.
For performance reasons you do not want to have the application writing in
network space, so you still write to local fast disk. Then you setup a
"rules file" which defines the local filesystem where you want to get data
from. There is a config file, can't remember the name of it, where you
specify the type of networ protocol to be used to HSM from the disk to SM.
your choices are FTP and NFS
8. How to specify target e.g SM server ?
See config file above. I must say that while the SM manual is cryptic, the
DXDM manual is not that bad.
9. Client files will go to local HSM Filesystem then straight to SM server
disk cache ? How it works ?
If and only if you choose to install DXDM. If not, then the local files will
have to be manually copied into the NFS mount point of DXSM.
Sorry to throw u so many questions ? :)
No prob, I was in your shoes a few months ago, and I had some great help.
Regards
Sumash
-----Original Message-----
From: Sumash Singh [mailto:sumash AT sourceconsulting.co DOT za]
Sent: Thursday, March 20, 2003 1:24 PM
To: 'Robert Loh'
Cc: John Hope-Bailie
Subject: RE: [Networker] OTG for unix
Hi Robert
I am unable to post any messages to the list, so I will need to check my
login acc again, but I will respond to you anyway. I need to know more
specifics about your site.
What operating system platform are you running SM on? What optical
drive/jukebox are you using as well??
You do not need to DXDM to be able to purge the files from the diskcache
space. If you install a server with SM, then you have the ability to setup
some other servers to NFS mount the DIskXtender FileSystem. Hence when a
client machine dumps data into that mount point, it goes into DX's caching
space, which by the rules that you set, will force a migration after the
"normal" 3minutes or when there are adequate number of files to warrant a
mount of a media.
DXDM is only required when you want your cliejnt computers to be able to
HSM, but do not want your application to be hindered by NFS performance
which we all know is significantly slower than direct write/read to
local/SAN attached disk. With DXDM, you setup the file system that you want
to manage as an HSM FS, and specify the target (ie which SM server) you want
to migrate ellegible files. So, if you have a file imaging system that needs
to write very quickly to disk, you setip DXDM on that server and specify
that the target SM system should be used to migrate these files. Your
application will write to local disk at local disk speeds and DXDM will
migrate those files when ready
About the mounting etc I will get some more info on that and forward it on
to you in diue course.
Happy DiskXtending
Regards
Sumash
-----Original Message-----
From: Robert Loh [mailto:robert AT softsource.com DOT sg]
Sent: 20 March 2003 04:31
To: Sumash Singh
Cc: Robert Loh
Subject: RE: [Networker] OTG for unix
HI Sumash,
Could u please provide me step by step in setting up SM ? like optical drive
mounting and elaborate further about the working mechanism(need nfs mount
partition for diskxtender etc...) behind :) . Read throught the manuals but
quite confusing.
Without DXDM we can do migration, purging right ?
thanks
Robert
-----Original Message-----
From: Sumash Singh [mailto:sumash AT sourceconsulting.co DOT za]
Sent: Tuesday, March 18, 2003 7:40 PM
To: 'Legato NetWorker discussion'; 'Robert Loh'
Subject: RE: [Networker] OTG for unix
When you say that you MUST have DXDM and DXSM what do you mean. Are you
trying to HSM data from many machines to one Storage Manager Server or just
one mmachine on its own??
I have installed and tested SM2.5 successfully in our environment, although
thsi is not a production environment. I have not had the need to test the
DM2.5 stuff yet, but my imporessions on the SM2.5 is that it is quite a
solid product, which takes some understanding of the components at play.
After all, if you are working on UNIX (any flavor) you should be used to
working the commands etc
Enjoy
Regards
Sumash
-----Original Message-----
From: Robert Loh [mailto:robert AT SOFTSOURCE.COM DOT SG]
Sent: 18 March 2003 12:53
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] OTG for unix
Hi All,
The OTG for unix version that I am trying is SM 2.6 and DM 2.6 (the lastest)
for Solaris
Quit sad to say that. We are using Solaris 9. SM2.6 does support Solaris 9
but not DM2.6. But this two components have to work together to form a
archiving system.
Frankly speaking, the manual is very confusing and we need a lot of trial an
error. Not clear enough to setup OTG machine base on the manual.
Anybody can point me or send me some other documentations that has tested
during implementation with experiences will be much much appreciated. I
don't think I am the one in this world to suffer.
Cheers..
Robert
-----Original Message-----
From: Robert Loh [mailto:robert AT SOFTSOURCE.COM DOT SG]
Sent: Wednesday, March 05, 2003 5:44 PM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: [Networker] OTG for unix
Anybody in this group play with OTG for Unix DBUL before.
I am trying to setup DBUL 2.5 for our sun solaris 2.7 with HP loader to no
avail. Look like quite difficult to configure in the sense. Free discusstion
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