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Storwize V7000 Vs the Rest – a Quick SPC-1 Performance Roundup
This post is in response to the discussion around my recent Easy Tier performance post. Now updated to include SPC-1/E results (now that I realise it is the same workload as SPC-1 as highlighted by...
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Where Should I Shove This Solid State Drive?
Everyone agrees that enterprise-class SSDs from companies like STEC Inc are fast, and cool, and pretty nice. Most people also realise that SSDs are an order of magnitude more expensive than SAS drives,...
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Maximum Fibre Channel Distances
Just a quick hit and run blog post for today… This table authored by Karl Hohenauer just came into my inbox. With the changes in cable quality (OM3, OM4) the supported fibre channel distances have...
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You can’t always get what you want
There have been a raft of new storage efficiency elements brought to market in the last few years, but what has become obvious is that you can’t yet get it all in one product. Think about some of the...
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A Small Challenge with NAS Gateways
SAN Volume Controller Late in 2010, Netapp quietly announced they were not planning to support V Series (and by extension IBM N Series NAS Gateways) to be used with any recent version of IBM’s SAN...
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XIV Gen3 Sequential Performance
Big Data can take a variety of forms but what better way to get a feeling for the performance of a big data storage system than using a standard audited benchmark to measure large file processing,...
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Easy Tier is even better than we thought!
IBM storage architects and IBM Business Partners are encouraged to use Disk Magic to model performance when recommending disk systems to meet a customer requirement. Recently v9.1 of Disk magic was...
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FCIP Routers – A Best Practice Design Tip
Many years ago a Glaswegian friend of mine quoted someone as saying that the 1981 anti-apartheid protests in New Zealand (South African rugby tour) showed that New Zealand was not just a floating...
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What do you get at an IBM Systems Technical Symposium?
What do you get at an IBM Systems Technical Symposium? Well for the event in Auckland, New Zealand November 13-15 I’ve tried to make the storage content as interesting as possible. If you’re interested...
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IBM XIV Gen3 and SPC-1
IBM has just published an SPC-1 benchmark result for XIV. The magic number is 180,020 low latency IOPS in a single rack. This part of my blog post was delayed by my waiting for the official SPC-1...
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IBM FlashSystem 840 for Legacy-free Flash
Flash storage is at an interesting place and it’s worth taking the time to understand IBM’s new FlashSystem 840 and how it might be useful. A traditional approach to flash is to treat it like a fast...
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My name is Storage and I’ll be your Server tonight…
Ever since companies like Data General moved RAID control into an external disk sub-system back in the early ’90s it has been standard received knowledge that servers and storage should be separate....
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