Archive for May, 2007

Using VTLs

The discussion on EMC’s VTL has got StorageZilla and other EMC’ers a little excited. It stems from Barry’s post on the DL6000, a Godzilla of a VTL as I’ve previously discussed before. I think it is worthwhile reviewing the exact point of having a VTL in the first place. Tape...
May 26th, 2007 | Uncategorized | Read More

Mine's Bigger than yours – Part Deux

Old Barry’s at it again with the DMX pitch, this time for VTL. Here’s a quick comparison with Copan’s Revolution 220TX system and the specification of the DL6100 from EMC’s website. Copan Revolution 220TX Single Cabinet 896 drives (500GB SATA) Power (max): 6368 watts Throughput:...
May 25th, 2007 | Uncategorized | Read More

Trusting TrueCopy

For those people who use TrueCopy on a daily basis, you’ll know that the assignment of a TrueCopy pair is based on a source and target storage port, host storage domain and LUN. This means a LUN has to be assigned out to replicate it. The part that has always worried me is the fact that the target...
May 22nd, 2007 | Uncategorized | Read More

Thin Provisioning – Cisco Style

There have been so many discussions on thin provisioning since the Hitachi USP-V announcement. When a major player takes on a specific technology, all of a sudden we realise that everyone else has already been doing it. Tony Asaro’s post probably provides the best summary of those who do it...
May 22nd, 2007 | Uncategorized | Read More

New Product Announcement,,,

There’s another new product out this week from HP – the XP24000… It seems to have some similarities to another product launch, 224 ports, thin provisioning, partitioning… _uacct = “UA-1104321-2″; urchinTracker();
May 17th, 2007 | Uncategorized | Read More

Poll Results

Thanks to everyone who voted in the poll on Optimiser/Cruise Control; seems like most people like the recommendations but don’t trust it to make automatic changes. I’ve got a new poll running for the next month – tell me what you think about USP-V. Now I’m *sure* there will...
May 16th, 2007 | Uncategorized | Read More

Port Indexes on Cisco Switches

I spent today building some Cisco MDS9513 switches. It’s good to get into the nuts and bolts of technology once in a while. They are big beasts – 2nd generation technology and with 11 usable slots, the biggest available line cards (48 ports), 528 ports in a single chassis. However the...
May 16th, 2007 | Uncategorized | Read More

USP-V…and another thing

I hate it when I write a post then think of other things afterwards. One more USP-V thought (I’m sure there will be more). One of the drawbacks of the current hardware with virtualisation is the effort to remove/upgrade the USP. Was there anything in the announcements on Monday to cater for...
May 16th, 2007 | Uncategorized | Read More

USP-V – bit of a let down?

It seems from the posts seen so far on the blogosphere that the USP release is causing a bit of a stir (10 points for stating the obvious I think). So, here’s my take on the announcements so far. First of all, it’s called USP-V – presumably because of the “Massive 500-Percent Increase in Virtualized...
May 15th, 2007 | Uncategorized | Read More

100 Up

I’ve reached 100! No, not 100 years old, but my 100th post. I’ve surprised myself that I’ve managed to keep going this long. So a bit of humour – I’ll save the USP-V discussions until later – who remembers Storage Navigator for the 9900 series? Well, the left-hand...
May 14th, 2007 | Uncategorized | Read More
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