Hi Paul,

it's an issue. Whenever I try to read data which has been backed up throught
the SAN (audit vol, restore, ba stgp, etc), I get thousands of unreadable
files with the following error message:

09/03/01   08:59:08      ANR9999D pvrntp.c(3438): ThreadId<37> Invalid block
header
                          read from NTP drive RMT4 (/dev/rmt4).
(magic=E2D8C2C8,
                          ver=1, Hdr blk=447192 <expected 447193>,
dbytes=262124
                          <262124>)

Sincerely,
Joerg Nouvertne
http://home.wtal.de/the_swordsman



> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Seay, Paul
> Sent: Donnerstag, 25. Oktober 2001 05:21
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: SAN Environment
>
>
> Not sure what you are saying here.  If you created separate pools
> (W2K) only
> tapes you should not have to worry if it is a header problem on
> the tapes.
>
> -----Original Message-----
> From: Jörg Nouvertné [mailto:joerg.nouvertne AT WTAL DOT DE]
> Sent: Wednesday, October 24, 2001 9:35 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: SAN Environment
>
>
> That's correct as long as you install the Storage Agent on the
> client, which
> "borrows" a drive from the TSM server and send only the management info
> through the LAN. Therefore you needs the (expensive) STA license and to my
> knowledge the library sharing option.
>
> We used it once but had to disable it, since in our environment (W2K
> Client/STA and AIX TSM 4.2.0.1) we cannot read most of the data
> being backed
> up, because the real blockheader on the tape does not match the expecting
> one. But it's fast, together with the TDP for Domino we achieved ~18MB/sec
> throughput for each tape drive (3 in parallel). I hope, IBM/Tivoli can
> resolve this issue soon.
>
> Joerg Nouvertne
> http://home.wtal.de/the_swordsman
>
> > -----Original Message-----
> > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf 
> > Of
> > Chris Young
> > Sent: Dienstag, 23. Oktober 2001 21:37
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: SAN Environment
> >
> >
> > One other thing that is interesting to note...If you are using
> > LAN-Free, you
> > can create a management class that points to a disk pool and a
> management
> > class that points to a tape pool and then make entries in the
> > incl/excl list
> > to include these management classes.  By doing this, you can direct some
> > data to go over the SAN directly to tape (LAN-Free) and have
> > other data pass
> > over the network to disk.  While I have only experimented with
> > this at this
> > time, it seems to have potential performance benefits if you network
> > bandwidth available.
> >
> > Christopher S. Young
> > Senior System Engineer
> > Gresham Enterprise Storage
> > www.greshamstorage.com
> > Office: 303.413.1799 x 205
> > Mobile: 303.717.2745
> >
> >
> > -----Original Message-----
> > From: Lambelet,Rene,VEVEY,GL-IS/CIS [mailto:Rene.Lambelet AT NESTLE DOT COM]
> > Sent: Tuesday, October 23, 2001 12:57 PM
> > To: ADSM-L AT VM.MARIST DOT EDU
> > Subject: Re: SAN Environment
> >
> >
> > You can backup LAN-free to disc if you have SANErgy installed on
> > a metadata
> > server.
> > If not, you can only backup LAN-free to tapes.
> >
> > Regards,
> >
> > >       René Lambelet
> > >       Nestec S.A. / Informatique du Centre
> > >       55, av. Nestlé  CH-1800 Vevey (Switzerland)
> > >       *+41'21'924'35'43  7+41'21'924'28'88  * K4-117
> > >       email rene.lambelet AT nestle DOT com
> > >       Visit our site: http://www.nestle.com
> > >
> > >               This message is intended only for the use of
> the addressee
> > > and
> > >         may contain information that is privileged and confidential.
> > >
> > >
> > > -----Original Message-----
> > > From: Mauro Jr, Frank [SMTP:Frank.MauroJr AT LIBERTYMUTUAL DOT COM]
> > > Sent: mardi, 23. octobre 2001 18:39
> > > To:   ADSM-L AT VM.MARIST DOT EDU
> > > Subject:      SAN Environment
> > >
> > > We currently point our backups to disk.
> > >
> > > If we go to a SAN environment can we still use disk or will we
> > have to go
> > > to
> > > tape?
> > >
> > > Frank Mauro
> > > Backup and Recovery Services
> > > Frank.MauroJr AT LibertyMutual DOT com
> > > Telephone Number: 603.245.3207
> > > Beeper Number: 888.797.0806
> >
> >
>
>