Showing posts with label data migrations. Show all posts
Showing posts with label data migrations. Show all posts

Monday, 23 June 2008

Incipient Revisited

You will remember that I recently posted a comment about migration costs, specifically with relation to Incipient. My view was (and still is) that the majority of migration costs come from preparatory and remedial work rather than execution of the migration. Well, Incipient asked for the right of reply and I had a call last week with Robert Infantino, their Marketing and Alliances Sr VP.

The $5000/TB figure they were quoting was an average they had seen in the industry for certain vendors' professional services time to come in and perform the migration work on behalf of the customer. Incipient's take was that they could provide their appliance/software expertise to provide the same service but at a significantly reduced cost (I won't quote specific numbers here, but the number quoted was much lower than the equivalent cost from "a vendor"). So, I guess with clarification, it is more clear that Incipient were comparing the vendor costs versus their product costs and not including any internal customer costs (project management, preparation work etc) in the calculation. This seems a more appropriate comparison in my opinion.

Getting back to the vendor discussion, there's a real issue here. If vendor X wants to sell you their latest technology, they need to accept and take the hit on helping with migration to their new array. This should be even more so where the vendor doesn't change as this should be a "no brainer" and built into the technology.

In a world where hardware is becoming a commodity, one differentiator will be the vendor who can minimise the effort/cost and impact of migrating from one technology to another. Until then, products like SVC and those from Incipient will continue to have a market position - oh and humble consultants like yours truly!

Thursday, 12 June 2008

Storage Migration Costs

I’ve not paid much attention to Incipient (their news page doesn’t provide an RSS feed, so there’s no chance of me seeing their press releases easily), but my attention was recently drawn to a recent release relating to their iADM and iNSP products (catchy names, those).

Now, if you want to know about their products, have a look at their website for yourself. Rather, my interest was sparked by a claim in their press release, quoted below:


The High Cost of Today's Data Migration

Industry estimates and field data captured by Incipient indicate that SAN storage is growing at 40 - 60 percent annually and 25 percent of data under management is moved annually at an average cost of $5,000 per terabyte. Based on these estimates, a data center with one petabyte of storage under management today spends $1.25 million annually on data migration operations. Two years later, the data center is likely to grow to nearly two petabytes increasing the annual data migration cost to nearly $2.5 million.

Source: Incipient Press Release 11 June 2008

So the estimate is $5000 per TB of data movement and 25% of data being moved each year. I can understand the latter; it’s simple logic that if you have a 3-4 year lifecycle on technology then on average 25% of your estate will be being refreshed each year (although that figure is slightly distorted by the fact that you’re also deploying an additional 40-60% each year). Now, how to get to a $5000 per TB calculation...

Excluding new storage acquisition, network bandwidth, etc, I’d assume that the majority of migration costs will be people time. That would include planning and execution of migrations. In environments of 1PB or more, I could (almost) bet my house on the fact that there will be a significant amount of the storage infrastructure which is (a) not understood (b) badly deployed (c) backlevel amongst many other issues. $5000/TB would therefore seem quite reasonable, based on the amount of work needed to refresh. The only problem, though, is that a majority of the manpower cannot be solved by software alone. This will include documenting the environment, bringing server O/S, firmware and drivers up to date, negotiating with customers for data migrations, migration schedule planning, clearing up wastage, new server hardware and so on.

It would be an interesting exercise to determine what percentage of the $5000/TB cost is actually attributable to data movement work (i.e. having someone sitting at a screen issuing data replication commands). I suspect it is quite low. From experience, I’ve been able to move large volumes of data in quite short timespans. In fact assuming sensible preparation and planning, most of the time doing migrations is sitting around (previous employers disregard this statement).

So how much money would Incipient save? My bet is not much.