I have a customer with a 7510, it has worked flawlessly and is VERY easy to implement. I have 2 other customers with non-IBM VTL's that have run into some configuration and throughput issues. All VTL's have different capabilities and different throughput characteristics - you have to match yours to your throughput expectations. I have not yet touched a 7520 in the wild, but as far as I can tell, it's terrific. IBM took the 7510 and fixed all its limitations (which weren't out of line with other vendors to start with). The 7520 has more fibre connections & path failover, which the 7510 did not. It will scale up to 800 TB (yep that's with a T), which many (most) of the VTL's on the market will not. An ordinary 2-engine 7520 will support a total throughput rate of 2400 MB/sec. A 4-engine config will support up to 4800 MB/sec (yep thats four-eight-zero-zero) MB/sec. Looks to me like it's the biggest, baddest, boy on the block now as far as VTL's go. What's not to like?!? Just my opinion. Wanda (no I don't sell hardware, I just like TSM to fly...) Prather
________________________________ From: ADSM: Dist Stor Manager on behalf of David E Ehresman Sent: Wed 6/6/2007 9:10 AM To: [email protected] Subject: IBM TS7520 VTL Anyone looking at the new IBM TS7520 VTL? What do you think?
