topic Re: Snapdrive (SDW) and reverse IP lookups in Data Protection

Snapdrive (SDW) and reverse IP lookups

aaronh — Thu, 05 Jun 2025 07:27:53 GMT

Folks,

does Snapdrive have a critical dependency on reverse lookup of IP addresses to successfully mount a LUN?

IHAC that is asking this and doesn't understand why Snapdrive would need to resolve IP --> names at all. Why can't it just use IP addresses?

Quote below;

It’s annoying, because it means we have to either a) add an entry into every Windows HOSTS file, which doesn’t scale well, or b) put the names in DNS, creating bucketloads more failure points and more complex networking.

--------------------------------------------------------------------------------------------

Thanks in advance,

Aaron

Re: Snapdrive (SDW) and reverse IP lookups

watan — Mon, 15 Jun 2009 19:43:26 GMT

Hi Aaron,

Unfortunately reverse ip lookups are required for all of the snapdrive products. Without reverse lookups you will have problems connecting to the filer and is noted in the IAG.

Re: Snapdrive (SDW) and reverse IP lookups

aaronh — Fri, 17 Jul 2009 02:26:39 GMT

Thanks for the clarification.

We definately need our product management folks to look closer at the scalability of this solution. Issues like this give customers a reason to not deploy snapdrive.

Re: Snapdrive (SDW) and reverse IP lookups

aaronh — Fri, 17 Jul 2009 02:32:22 GMT

Are you able to clarify exactly why this dependency is there?

Is there a fundamental mechanics dependency on reverse IP lookups for Snapdrive to work? OR is this simply the way it is coded. i.e. Could we just put a switch/radio button in SD that says, "do not use reverse IP lookups, just use IP addresses"?

Thanks,

Aaron

Re: Snapdrive (SDW) and reverse IP lookups

aaronh — Mon, 10 Aug 2009 00:27:50 GMT

Bumping.

Re: Snapdrive (SDW) and reverse IP lookups

nagendrk — Mon, 10 Aug 2009 15:19:05 GMT

Bug filed.. This is a burt now..