Comments for Ramblings of a semi sane person

Comment on Verizon FiOS and the security of my home network by Trackback - Cheap Internation Call >> How to make cheap international call

Thu, 19 Nov 2009 22:02:19 +0000

,..] secadmin.wordpress.com is other interesting source of information on this topic,..]

Comment on Passed a Potential Security Risk???? by Luke

Luke — Wed, 18 Nov 2009 13:59:28 +0000

So, what does this message actually mean though. Is it safe to delete the file? The file that gives us this message is called sys.dat which sounds pretty important to delete.

Comment on iSCSI Configuration with Lefthand and Quorum Management by Helmut

Helmut — Thu, 12 Nov 2009 23:45:04 +0000

Hello

i wil test the Lefthand VSA and i need the FOM App.

Please uplad the file for me?

Thx

Comment on fiber channel vs. iscsi by Patrick

Patrick — Wed, 04 Nov 2009 08:43:32 +0000

iSCSI isn’t bad. But you need a usecase for it. If you need MB/s, you will get much more performance with FC, FC is much more efficient then iSCSI. 98,5% of a FC frame is data, not overhead. With iSCSI you will get maybe up to 60 or 70% usable bandwidth for data. 10 GbE is nice, but 8 GB is faster. Sure, FC isn’t a cheap technology, but it’s not an option to choose such an important infrastructure (storage) by price. You should choose the technology because it’s the right technology for you company, for your needs and for you budget. Some of my customers are running FC and iSCSI. Depending on the needs, they deploy FC, iSCSI or NFS/ CIFS to there internal customers.

Comment on iSCSI Configuration with Lefthand and Quorum Management by Zeus Wing

Zeus Wing — Mon, 12 Oct 2009 16:47:30 +0000

@secadmin

Can you reupload the FOM, its no longer available for download.

Comment on How to clean up outlook 2007 calendar by paolo

paolo — Mon, 12 Oct 2009 10:53:05 +0000

grazie

Comment on Why can’t Windows be like AS/400 or Mac OSX? by What can’t Windows be like AS/400 or Mac OSX? | Online - Online.com.pt

What can’t Windows be like AS/400 or Mac OSX? | Online - Online.com.pt — Wed, 02 Sep 2009 00:55:29 +0000

[...] View original post aqui : What can’t Windows be like AS/400 or Mac OSX? [...]

Comment on About by axe

axe — Tue, 01 Sep 2009 19:59:23 +0000

Thank God… am I from NY

Comment on iSCSI Configuration with Lefthand and Quorum Management by Stephan Stelter

Stephan Stelter — Thu, 27 Aug 2009 19:44:16 +0000

Robinson – thanks for the feedback! Per my email to you, I think you’ll want to check your configuration – Failover Manager intervenes much more rapidly than 43 seconds – it is much closer to instantaneous than that. I suspect your test systems are strapped for memory. Put the Failover Manager on any system capable of running VMware Player or another ESX host – you definitely don’t want it on the same system(s) as the VSA…

Best regards,
Stephan

Comment on iSCSI Configuration with Lefthand and Quorum Management by Robinson Maureira

Robinson Maureira — Thu, 27 Aug 2009 18:52:04 +0000

OK, test is done. Everything worked like a charm. On a busy network, it took 43 seconds to do the failover, the machines that have the LUN presented went to 100% IOWAIT during that time.

After that, everything regained consistency. No data loss, no lost transactions, just a small “freeze” of ~40 seconds. My client is impressed with the result.

The main concern is still the lack of automated Virtual Manager startup on the surviving node, so they can deploy two machines without requiring a third virtual machine to regain quorum.

My next lab will be a VMware cluster without storage but with HA.

Thanks again for all your help.