Enterprise Grade IT Services For Businesses Large & Small » iscsi san

NSS for SAN Provisioning of System and File-level Recovery 1/7

admin — Mon, 23 Aug 2010 14:29:29 +0000

NSS for SAN Provisioning of System and File-level Recovery

iSCSI SAN, Fibre Channel (FC) SAN, VMware Storage & NSS – Disaster Recovery, thin provisioning, VMware storage virtualization and easy-to-use, scalable SAN solution from FalconStor meets your enterprise needs.

Duration : 0:6:24

[youtube oXKISMdIU60]

Diskless booting Windows 2008 from an SAN using a ISCSI LUN over gPXE

admin — Fri, 13 Aug 2010 11:18:28 +0000

Diskless booting Windows 2008 from an SAN using a ISCSI LUN over PXE

Duration : 0:7:16

[youtube 9pwMbRcwQ1s]

iSCSI SAN Mirroring

admin — Wed, 28 Jul 2010 06:36:16 +0000

dnfcorphttp://gdata.youtube.com/feeds/api/users/dnfcorpPeopleiSCSI, SAN, MirroringiSCSI SAN Mirroring

Duration : 0:5:7

[youtube STfjSDIrTR8]

StoneFly iSCSI SAN Volume Creation

admin — Sun, 18 Jul 2010 06:54:16 +0000

dnfcorphttp://gdata.youtube.com/feeds/api/users/dnfcorpPeopleStoneFly, iSCSI, SAN, Volume, CreationStoneFly iSCSI SAN Volume Creation

Duration : 0:6:20

[youtube p1MPtM65sd4]

Fisrt view on StarWind 5 with HA storage

admin — Wed, 07 Jul 2010 21:36:26 +0000

First view from StarWind`s Software engineer Bob Boule on StarWind 5, with brand new interface and support of active-active high availability storage with automated failover and failback.

Duration : 0:7:26

[youtube XKrtv_cyDAA]

Enterasys SAN Mgr. on Choice of iSCSI SAN for Production Applications & EqualLogic User Conference

admin — Mon, 28 Jun 2010 20:38:24 +0000

Rich Arnold of Enterasys IT group describes the benefits of the companys move to an iSCSI SAN from Fibre Channel, how EqualLogic performs, and their use of EqualLogic for Exchange, SAP, VMware, etc. and why hes coming to the EqualLogic User Conference.

Duration : 0:3:25

[youtube qi82yLzCVQI]

Enterasys IT Dir. Discusses iSCSI, SAN Migration & EqualLogic User Conference

admin — Thu, 17 Jun 2010 21:23:00 +0000

Rich Casselberry, Director of IT Operations at Enterasys, discusses what Enterasys does, their decision to switch from Fibre Channel to an iSCSI SAN and a data center migration project enabled by server virtualization, replication & iSCSI storage. Rich also talks about why hes coming to the EqualLogic User Conference.

Duration : 0:2:37

[youtube Mi9Lc-H4WiA]

What’s the bottleneck of my NAS?

admin — Thu, 17 Jun 2010 11:51:07 +0000

Hi,
I currently own a homemade NAS.
It has a AMF 690G chipset, an Athlon 4450e underclocked @1ghz and 1 gb of memory.
HDDs are 4x WD GP 1 TB in a raid10 setup.

5 other computers are linked to this NAS.
All have a gigabit onboard ethernet, switch is gigabit too and all cables are cat 5e.
OS is freenas.

The best rate I can achieve (with a large samba transfer) is about 15-20 MB/s.
I tried to change the setup in a SAN-like network, using iSCSI, but it’s just a little faster (19-22 MB/s), even with large ntfs clusters (8 or 64kb). Even tried raid5, performance is about the same.

It doesn’t sounds very fast to me, so I wonder: what’s my bottleneck?
Cables? Switch?
HDDs? Sata (onboard) controller? ethernet adapters? memory? OS?

Is it a software issue or should I upgrade a part ?
Of course I know everything would be faster with a fibrechannel network and scsi drives, but that’s way too expensive…

Thank you

maybe the NIC in the NAS server. You say it’s gigabit, but check the settings, maybe it defaults to 100mbit. Onboard NICs are usually not as fast as some higher performance NICs. However, if data transfer is 20MBytes/s then you are running at least 160mbit, maybe close to 200.
How long are the network cables to the switch? cat5e will be ok for shorter runs.
Other guess is SATA controller and how it handles the raid10. If you can, do the tests with just one drive, no raid, and see if that’s any better (or the same)
What’s the speed with a FTP transfer? maybe the overhead of Samba is causing the bottle neck…
Good luck…

Edit: FreeNAS says it only needs 32 or 64MB memory, so you have more than enough. Some people need 128 or 256 if "Full" version, not Imbedded.The CPU "should" be ok too…

Second Edit: Their specs:
What is the minimum system requirements ?

CPU

* Pentium processor or equivalent (Minimum requirements).
* Pentium 2 (suggested).
* Pentium 3 or equivalent (suggested for software raid ).
* Pentium 4, Dual Core, Quad core.(for large storage volumes and high traffic).

Memory:

* 64 MB Ram for Xbox ‘full’ install version plus swap enabled.
* 128 MB Ram , minimum Ram required for ‘embedded’ version.
* 256 MB Ram required for iSCSI targets.
* 512+ MB Ram for very large volumes 1+ TB storage

openQRM Cloud deploying physical Windows Systems from an iSCSI SAN on CentOS 5.5

admin — Tue, 08 Jun 2010 09:28:57 +0000

This video was made by the openQRM Enterprise Labs and is part of the “openQRM Cloud deploying physical Windows Systems from an iSCSI SAN on CentOS 5.5″ HowTo. It shows the boot-sequence of a physical Windows System deployed by openQRM Cloud booting diskless from a remote iSCSI SAN.

Please find the HowTo at http://www.openqrm-enterprise.com/news/details/article/howto-setup-openqrm-cloud-deploying-physical-windows-systems-on-centos-55.html

Duration : 0:2:8

[youtube IwnyUgS--w4]

Need help for the interview questions?

admin — Tue, 08 Jun 2010 04:01:37 +0000

hi ,i need help for the topics mentioned below

—SAN
—SCSI
—RAID
—STORAGE
—iSCSI
—UNIX
—VMWARE
–INTEL/AMD PLATFORMS,BUSES,MEMORY,PROTOCOLS
–NAS
–DAS
–HARDWARE AND SOFTWARE DEBUGGING TOOLS

If you’re applying for an I.T. job and don’t know what those are don’t bother going to the interview. If the interview is for something other than information technologies, you’re going to have to do a lot more research than what people in a forum can help you with.