Comments for Michael Hay

Comment on You have got to be kidding me - UPDATED by Censorship in the Republic of Ireland » Computer data storage

Censorship in the Republic of Ireland » Computer data storage — Mon, 06 Jul 2009 23:35:36 +0000

[...] Michael Hay » Blog Archive » You have got to be kidding me - UPDATED [...]

Comment on iTunes Woes by Michael Hay

Michael Hay — Mon, 06 Jul 2009 21:14:52 +0000

Yes Nick, that’s what I’m looking for is something like the storage command suite for home use and all of the trimmings for that. Which means that your grandmother had better be able to use it. It cannot be for expert storage administrators and needs to also implement capacity savings features such as deduplication, compression, SiS and the like. Well here’s to pipe dreams. I’d just be happy if Apple would produce something either for pay or as a feature in iTunes to report on what I have and help me figure out how to best use the spare capacity I have lying around.

Comment on iTunes Woes by Nick Howe

Nick Howe — Mon, 06 Jul 2009 16:40:14 +0000

I use a Drobo (www.drobo.com) attached to my Airport Extreme to share music on the network. I have 4×1TB Hitachi Deskstar drives in a RAID 5 config. The Drobo is great because you can mix and match different drive sizes and upgrade to different disks at any time.

I use two primary music systems - iTunes and Sonos. My primary iTunes library is stored on the Drobo and accessed from my MacBook via a mount point. I use iTunes to support my iPhone and Apple TV music and movie needs, but for general listening in the house and yard I use my Sonos whole house music system. It reads the same shared library, bypassing iTunes.

I have another shared drive on the Drobo that I use as a backup drive for the MacBooks and my work files and Outlook PSTs.

I gave up on Time Machine. Nice idea but doesn’t support network drives unless you have a Time Capsule, and there is no RAID.

Also agree with you that iTunes media management interface doesn’t work well for large libraries (I have 300GB of music, movies, podcasts and TV shows growing fast).

Multi-TB homes have been a reality for a while (we have 5 PCs/Macs in our house with over 2TB of total internal storage). Given that, multi-TB home networked storage systems are becoming a reality. Maybe there needs to be a version of the Hitachi Storage Command Suite for home use?

Comment on Linux File Systems Visualized by Michael Hay » Blog Archive » XFS Alive and Kicking

Michael Hay » Blog Archive » XFS Alive and Kicking — Fri, 03 Jul 2009 07:25:19 +0000

[...] I reported in the previous post there are some interesting things going on when we look at btrfs and xfs. The first thing that I [...]

Comment on Hybrid Computing in the News by Michael Hay

Michael Hay — Thu, 02 Jul 2009 08:19:14 +0000

Sanjeev, glad to know that you think this is the case. I would tend to agree with you here. Usually super computing platforms that make it into the national labs or the military tend to find all of or some portion of their technologies migrated into the commercial sector in about 5 years. IBM BlueGene technology is available for commercial purchase now and that was originally designed for the national labs.

Comment on Hybrid Computing in the News by sanjeev

sanjeev — Thu, 02 Jul 2009 05:30:59 +0000

this kind of project can only be run by NASA or MIL as it requires huge funding. I think DARPA will be completely disruptive technologically.

Comment on You have got to be kidding me - UPDATED by Michael Hay

Michael Hay — Tue, 30 Jun 2009 01:04:02 +0000

Chris, I understand. When do you imagine that the points can be clarified or new material will be posted so that I can update the post accordingly?

Comment on You have got to be kidding me - UPDATED by ChrisS

ChrisS — Mon, 29 Jun 2009 23:24:49 +0000

The document you referenced tries to explain this in the second paragraph on page 3 where is says “When clients request a file that has been migrated to secondary storage, the Celerra system will access the file directly from secondary storage to satisfy the client request.”

Tanya also points this out at about 3:25 into http://www.youtube.com/watch?v=lS_RuYuxyww - The arrow Tanya drew should have gone through the Celerra to the client.

Admittedly neither of these sources point out the data path difference between NAS as secondary storage vs. anything else.

Comment on You have got to be kidding me - UPDATED by Michael Hay

Michael Hay — Mon, 29 Jun 2009 09:43:16 +0000

Chris, thanks for the comment. Please let me know when you have updated the document and I’ll update the post here with the revised URL.

Comment on You have got to be kidding me - UPDATED by ChrisS

ChrisS — Mon, 29 Jun 2009 05:41:20 +0000

As it turns out, you are both correct. When archiving files from the Celerra production file system the data does flow through the policy and archiving application. When it is read back to either land in the Celerra production file system again or to just pass through in transit to clients, the Celerra will either read the data directly from the archive store if the archive store is accessible via NFS or CIFS, or read it through the policy and archiving application if the archive store is something like a Centera or tape or anything else. It seems the whitepaper could do with improving to make this clear.