On Thursday 30 June 2005 20:17, Murphy, Christopher wrote:
> Hello all,
>
> We are currently evaluating TSM for use in our environment (expected
> version to be 5.3.x on Linux or Solaris) against Veritas NetBackup.
> Backup via the SAN (i.e. LAN-Free) is crucial to us. Backing up
> directly to disk (via SAN) is also a high priority. I know to make this
> happen in TSM we must use SANergy. I know in the past this product had
> a mixed reception. I was hoping I might hear from some organizations
> who have used/are using it now for disk-based, SAN-pathed backups. Is
> SANergy reliable/stable, especially when processing hundreds of GB's
> nightly? I searched the ADSM.ORG archives, but found little discussion
> of SANergy that was less than years old. Also, the Redbook for it is 4+
> years old as well. The IBM web site also seems to be reluctant to offer
> information on SANergy. I get the feeling it is going away... perhaps
> because of IBM's SAN FS? Any thoughts appreciated. Thanx!
Can you provide some more information? How many clients with how many data to
backup at night? How many HBA's / server? Is the data migrated to tape?
I never used/installed SAnergy, but:
- SAN is 2g/s, LAN 1g/s, allmost the same speed
- extra sanergy overhead (maintanence, more that can go wrong, extra
license, ...)
- cost of HBA vs cost of gigabit NIC
- cost of SAN switch vs cost of network switch (you can even use a crosscable
between the NIC's if you want: reliable + sheap)
Also, if you backup over the SAN to tape or with SANergy, the data has still
to pass to the TSM client, so i'ts passing the SAN twice. I don't think
serverless backup is an option.
I should go for LAN based backups.
Stef
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