Their support is great.
H. Milton Johnson
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Eliza Lau
Sent: Wednesday, September 29, 2004 11:26 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: direct attached disk (DAS) at a tape library?
Thanks Milton,
This is everything I need to set up the S2100-DS in TSM. I am one step
ahead of the game.
How is their support?
Eliza
>
> Eliza,
>
> This is what I did in an AIX environment:
>
> 1) Configure, or confirm the config of, the VTL it self (it comes from
> Sepaton configed to your specs): Network config, email config, dns
> config, number of drives, number/size of cartridges, etc.
>
> 2) Connect the Ethernet port to your network (used for management of
> the VTL itself)
>
> 3) connect the Sepaton VTL to your fiber adapter on the AIX box
>
> 4) On AIX run cfgmgr (this allows AIX to make available the virtual
> tape drives at the OS level as rmt devices).
>
> 5) On AIX run "lsdev -Cc tape" to confirm that the drives are
available.
>
> 6) Now to make the AIX tape devices available to TSM
> ___smitty->Devices->Tivoli Storage Manager Devices->Fibre Channel SAN
> Attached Devices->Discover Devices Supported by TSM ___This made 50
> drives available to TSM as devices mt0 through mt49 and the library at
> lb0
>
> 7) Place the following TSM commands into a file "ds_setup.txt",
> Comment lines begin with a "#"
> # Define a library
> DEFine LIBRary DS01 LIBType=SCSI DEVIce=/dev/lb0 SHAREd=no # Define
> each drive in the library (created these lines with some unix
> scripting)
> DEFine DRive DS01 DS01DRV00 DEVIce=/dev/mt0 ONLine=YES element=128 .
> .
> .
> DEFine DRive DS01 DS01DRV49 DEVIce=/dev/mt49 ONLine=YES element=177 #
> Define a device class for the VTL tapes DEFine DEVclass DS01TAPE
> LIBRary=DS01 DEVType=DLT FORMAT=DRIVE ESTCAPacity=10G MOUNTRetention=1
> MOUNTWait=2 MOUNTLimit=DRIVES # Define a stgpool for DEFine STGpool
> DS01POOL DS01TAPE POoltype=PRimary ACCess=READWrite COLlocate=NO
> MAXSCRatch=999 REUsedelay=3 # Define a small disk stgpool as a front
> end for small files. This improves performance by # preventing the so
> called "wiper effect" (don't ask me, a 1GB stgpool is no big deal).
> DEFine STGpool DS01DISK DISK POoltype=PRimary ACCess=READWrite
> MAXSIze=100m NEXTstgpool=DS01POOL HIghmig=90 LOwmig=0 MIGPRocess=1 #
> Define a volume for DS01DISK DEFine Volume DS01DISK
> /tsm/stgpool/ds01disk/vol1.stg Formatsize=1000 # Now label and checkin
> the VTL cartridges, takes about 5-6 seconds per cartridge LABEl
> LIBVolume DS01 SEARCH=YES LABELSource=BARCODE CHECKIN=SCRATCH
> OVERWRITE=YES
>
> 8) Process ds_setup.txt
> egrep -v "^#" ds_setup.txt | /usr/bin/dsmadmc -id=<your_admin_id>
> -pa=<your_admin_password>
>
> After doing this I pointed a test server to backup to DS01DISK and it
> wotked without a problem. Pretty simple.
>
> H. Milton Johnson
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
> Of Eliza Lau
> Sent: Wednesday, September 29, 2004 9:29 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: direct attached disk (DAS) at a tape library?
>
> Milton,
>
> Sepaton is going to ship us a S2100-DS for testing with no commitment
> to buy. Can you share with us your experience? Is it worth 3 times
> the cost of setting up our own DASD. Is it as easy to implement as
> they claim and how is their support? As far as I know, compression
> will be available in Q1 2005. Our goal is to put the VTL or DASD in a
> building
> 1.5 miles away and put the primary stgpool on it. The 3494 will stay
> in the machine room and will keep the 'offsite' tape pools.
> Then we will never have to mess around with tape vaulting ever again.
>
> Eliza Lau
> Virginia Tech Computing Center
>
> >
> > Bill,
> >
> > I am presently implementing the S2100-ES and S2100-DS VTLs by
> > Sepaton which are also TSM certified. While at present I am using
> > them as directly fiber attached devices to my TSM server, I chose a
> > VTL solution over a DASD solution because: (1) I wanted to preserve
> > the ability to do a LANFree back-up in the future; (2) the VTL
> > offers compression without any performance hit to my TSM server or
clients.
> > As far as costs are concerned, sure you are paying something for the
> > VTL layer, but compression decreases that cost, besides TANSTAAFL
> > (There Ain't No Such Thing As A Free Lunch). We were faced with the
> > need for a major expansion and sticking with the tradition tape with
> > a
>
> > disk stgpool front end would have been very expensive. Give me a
> > month or two and I should be able to report on life with a TSM and
> VTL.
> >
> > H. Milton Johnson
> >
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> > Behalf Of Bill Smoldt
> > Sent: Wednesday, September 29, 2004 8:01 AM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: direct attached disk (DAS) at a tape library?
> >
> > Milton,
> >
> > After I wrote the last message, I noticed that FalconStor has
> > certified TSM SAN clients with their product, which is used by EMC
> > and
>
> > other manufacturers. I was thinking that it would be more
> > interesting
>
> > to run the VTL software on the TSM server rather than add another
> > piece of hardware, however.
> >
> > So VTL might be a nice alternative to trying to implement a shared
> > SAN
>
> > filesystem (SANergy) just to achieve shared file pools. I haven't
> > looked at the price. Have you?
> >
> > Bill Smoldt
> > STORServer, Inc.
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> > Behalf Of Johnson, Milton
> > Sent: Wednesday, September 29, 2004 6:48 AM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: direct attached disk (DAS) at a tape library?
> >
> > A virtual tape library operates and connects just like a physical
> > tape library in a SAN environment. The VTL, TSM server and your
> > client are connected to the SAN so a LANFREE back-up works using
> > TSM's
>
> > LANFREE technology. Since the topology is conventional you should
> > also be able to add a SAN Data Gateway and do a "server free
backup".
>
> > The key is that a VTL is just a conventional fiber connected library
> > with really fast robotics and drives. Yes, you do need to make sure
> > that the VTL plays nice with TSM, so make sure your choice in VTL is
> TSM certified.
> >
> > H. Milton Johnson
> >
> >
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> > Behalf Of Mark D. Rodriguez
> > Sent: Tuesday, September 28, 2004 10:43 PM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: direct attached disk (DAS) at a tape library?
> >
> > Johnson, Milton wrote:
> >
> > > I am not quite sure what you meant by "with TSM you can use disk
> > >only for backups instead of onsite tape". I do not see any reason
> > >why you can not use FILE device types for both primary and copypool
> stg pools.
> > >Of course if you actually want to move a copy of the data offsite,
> > >then
> >
> > >you would need some type of removable media such as tape.
> > >
> > >For me two of the attractions of a virtual tape library are being
> > >able to do lanfree backups without using Sanergy, and having the
> > >VTL do compression.
> > >
> > >
> > >H. Milton Johnson
> > >
> > >
> > >
> > Hi Milton,
> >
> > I am not sure how you get to do Lan-Free without using Sanergy. In
> > order to do that wouldn't the VTL have to have some kind of similar
> > code as Sanergy and then the question is does that play nicely with
> > TSM. Or am I missing something really obvious here? Please explain
> > how you will get Lan-Free to work in a TSM environment without the
> Sanergy code.
> >
> > Thank You.
> >
> > --
> > Regards,
> > Mark D. Rodriguez
> > President MDR Consulting, Inc.
> >
> > ====================================================================
> > ==
> > ==
> > =======
> > MDR Consulting
> > The very best in Technical Training and Consulting.
> > IBM Advanced Business Partner
> > SAIR Linux and GNU Authorized Center for Education IBM Certified
> > Advanced Technical Expert, CATE AIX Support and Performance Tuning,
> > RS6000 SP, TSM/ADSM and Linux Red Hat Certified Engineer, RHCE
> > ====================================================================
> > ==
> > ==
> > =======
> >
> >
>
>
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