Author Archive

How to live with disabled disks

Recently, I was working with a customer’s Sun StorEdgeTek 2540 array which mysteriously had all twelve disks in disabled state. Details Name: t85d01 ID: Tray.85.Drive.1 Array: Array Type: 2540 Tray: 85 Slot Number: 1 Role: Unassigned Virtual Disk: – State: Disabled Status: Optimal Capacity: 279.396 GB Type: SAS Speed (RPM): 15000 RPM Firmware: SA04 Serial […]

Posted on November 25, 2009 at 11:39 am by sergeyt · Permalink · Leave a comment
In: Sun

Brendan Gregg talks about DTrace

Another fantastic presentation from Brendan and just like all the previous ones it’s a must seen video

Posted on November 20, 2009 at 9:59 pm by sergeyt · Permalink · Leave a comment
In: Solaris

The end of “Fair Play”

After Theirry’s handball no trust left neither in pompous gentry in FIFA nor in their already fscked slogan. It’s such a shame…

Posted on November 20, 2009 at 1:48 pm by sergeyt · Permalink · Leave a comment
In: Life

Plugging HP-UX into SAN

Our task for today is to connect HP-UX (11.31 release) to MSA2312fc through SAN with two Brocade switches in between. First, we need to find out all FC cards installed in our server and once we have that piece of information we could dig for WWN numbers to map them latter to the disk array. […]

Posted on November 17, 2009 at 5:30 pm by sergeyt · Permalink · 4 Comments
In: HP-UX

Stranger in HP-UX

For the last couple of days I’ve been heavily playing with HP-UX, one of the unknown and never seen operating system. That’s true – I’ve never touch it before. But these days are over and now I’m overfilled with new experience and… mixed fillings. You see, on the one hand it’s UNIX and most of […]

Posted on November 11, 2009 at 11:35 pm by sergeyt · Permalink · Leave a comment
In: HP-UX, Life

Little Shop of Performance Horrors

Watch a fantastic presentation by Brendan Gregg who dwells upon different performance aspects and issues with real life examples. This 2.5 hours discussion has been split into three parts: Part 1,

Posted on November 7, 2009 at 3:01 pm by sergeyt · Permalink · Leave a comment
In: Solaris

Replacing broken disk in SVM RAID5

It’s ineluctable that one day metacheck script, I strongly encourage you to use it if you don’t, will report a metadevice problem. In nine cases out of ten the root cause will be a failed disk. # metastat d90 d90: RAID State: Needs Maintenance Invoke: metareplace d90 c0t13d0s2 Interlace: 512 blocks Size: 335421567 blocks (159 […]

Posted on October 27, 2009 at 2:35 pm by sergeyt · Permalink · Leave a comment
In: Solaris

Studying HDS 9990 and 9985 (THI1570)

Tomorrow I’m leaving to Saint-Pitersburg for 5-days training titled “Installing, Configuring and Maintaining Hitachi Universal Storage Platform™ V and Universal Storage Platform ™ VM”. Once I’m done with it, my CTS profile will be 100% completed. Not bad at all ;-)

Posted on October 18, 2009 at 2:07 pm by sergeyt · Permalink · Leave a comment
In: Life

Back to childhood

Having just returned from a child theater (sorry only in Russian) I can’t wait to express the inner fillings that brimmed me. A play, called “A hedgehog in the fog”, was awesome and brilliantly performed. And to tell the truth, sitting there in a dark with my kid on the laps I felt like I […]

Posted on October 18, 2009 at 1:58 pm by sergeyt · Permalink · Leave a comment
In: Life

Veritas romp

Just came across a really funny piece of code in OpenSolaris. /* * XXX – Don’t port this to new architectures * A 3rd party volume manager driver (vxdm) depends on the symbol romp. * ‘romp’ has no use with a prom with an IEEE 1275 client interface. * The driver doesn’t use the value, […]

Posted on October 16, 2009 at 9:29 am by sergeyt · Permalink · Leave a comment
In: Solaris, Veritas