Their support is great. H. Milton Johnson -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Eliza Lau Sent: Wednesday, September 29, 2004 11:26 AM To: [EMAIL PROTECTED] 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:[EMAIL PROTECTED] On Behalf > Of Eliza Lau > Sent: Wednesday, September 29, 2004 9:29 AM > To: [EMAIL PROTECTED] > 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:[EMAIL PROTECTED] On > > Behalf Of Bill Smoldt > > Sent: Wednesday, September 29, 2004 8:01 AM > > To: [EMAIL PROTECTED] > > 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:[EMAIL PROTECTED] On > > Behalf Of Johnson, Milton > > Sent: Wednesday, September 29, 2004 6:48 AM > > To: [EMAIL PROTECTED] > > 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:[EMAIL PROTECTED] On > > Behalf Of Mark D. Rodriguez > > Sent: Tuesday, September 28, 2004 10:43 PM > > To: [EMAIL PROTECTED] > > 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 > > ==================================================================== > > == > > == > > ======= > > > > > >
