Video Storage using i-SCSI
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Video Storage using i-SCSI

 
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SonjoyDe
Guest





Posted: Thu Nov 11, 2004 10:39 am    Post subject: Video Storage using i-SCSI Reply with quote

I would like to store video files in i-SCSI based boxes. These boxes
have
backend SATA drives. My server has i-SCSI HBA and Windows 2003 storage
server as operating system. I want to have simultaneous read and
writes on
these large video files stored on i-SCSI boxes. My problem is
simultaneous write acces in blocks. How do I overcome the arbitration
issues
when writing simultaneously under Windows Storage Server 2003? Also
would like to know how to handle the ethernet bottleneck in my Windows
Storage Server System?
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Nik Simpson
Guest





Posted: Thu Nov 11, 2004 4:37 pm    Post subject: Re: Video Storage using i-SCSI Reply with quote

SonjoyDe wrote:
Quote:
I would like to store video files in i-SCSI based boxes. These boxes
have backend SATA drives.

What are "these boxes", storage arrays with iSCSI interfaces, servers with
storage or what?

Quote:
My server has i-SCSI HBA and Windows 2003 storage
server as operating system. I want to have simultaneous read and
writes on these large video files stored on i-SCSI boxes.

Who or what is doing the writing, multiple client video editing systems?
What protocol are planning on using to give the clients access, CIFS? iSCSI?


Quote:
My problem is simultaneous write acces in blocks.

It's not at all clear from the description so far that that is your problem
:-)

Quote:
How do I overcome the arbitration issues when writing simultaneously under
Windows Storage Server 2003?

To the best of my knowledge, the only way to access a Windows 2003 Storage
Server box is through CIFs which is a filesharing protocol, so file access
issues are handled in the OS. Of course W2003 Storage Server may well not be
able to handle multiple clients writing video, it depends on the type of
video being written, for example uncompress broadcast quality video is
probably not going to work for you.


Quote:
Also would like to know how to handle the ethernet bottleneck in my Windows
Storage Server System?

Fast CPUs and use NICs with onboard TCP/IP offload engines to handle a lot
of the IP protocol overhead is probably the way to go.


--
Nik Simpson
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David
Guest





Posted: Sun Nov 14, 2004 12:45 pm    Post subject: Re: Video Storage using i-SCSI Reply with quote

"Nik Simpson" <n_simpson@bellsouth.net> wrote in message news:<p7Ikd.62344$Tq1.30098@bignews1.bellsouth.net>...
Quote:
SonjoyDe wrote:
How do I overcome the arbitration issues when writing simultaneously under
Windows Storage Server 2003?

To the best of my knowledge, the only way to access a Windows 2003 Storage
Server box is through CIFs which is a filesharing protocol, so file access
issues are handled in the OS. Of course W2003 Storage Server may well not be
able to handle multiple clients writing video, it depends on the type of
video being written, for example uncompress broadcast quality video is
probably not going to work for you.



The other option is a clustered filesystem like SGI's CXFS. The allows
multiple hosts to share the same file system and is design for high
bandwidth applications like video editing suites. The clients can be
Windows or any other platform, each have direct attach to the storage.

David
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Nik Simpson
Guest





Posted: Sun Nov 14, 2004 6:16 pm    Post subject: Re: Video Storage using i-SCSI Reply with quote

David wrote:
Quote:
"Nik Simpson" <n_simpson@bellsouth.net> wrote in message
news:<p7Ikd.62344$Tq1.30098@bignews1.bellsouth.net>...
SonjoyDe wrote:
How do I overcome the arbitration issues when writing
simultaneously under Windows Storage Server 2003?

To the best of my knowledge, the only way to access a Windows 2003
Storage Server box is through CIFs which is a filesharing protocol,
so file access issues are handled in the OS. Of course W2003 Storage
Server may well not be able to handle multiple clients writing
video, it depends on the type of video being written, for example
uncompress broadcast quality video is probably not going to work for
you.



The other option is a clustered filesystem like SGI's CXFS. The allows
multiple hosts to share the same file system and is design for high
bandwidth applications like video editing suites. The clients can be
Windows or any other platform, each have direct attach to the storage.

David

Agreed, but that's a whole different thing to the CIFS related question
asked by the OTP and requires a very different solution in terms of hardware
(i.e. a SAN not a NAS.) Agreed if video editing is the goal, then a global
SAN filesystem is the way to go. Just curious, do any of the global
filesystems support iSCSI yet?


--
Nik Simpson
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Anton Kolomyeytsev
Guest





Posted: Mon Nov 15, 2004 2:07 am    Post subject: Re: Video Storage using i-SCSI Reply with quote

Yup. DataPlow SFS works fine with our iSCSI target/initiator software.

For well-crafted FS there should be no difference what data path is
used. iSCSI, FC or just shared SCSI bus.

Regards,
Anton Kolomyeytsev

CEO, Rocket Division Software

"Nik Simpson" <n_simpson@bellsouth.net> wrote in message news:<eSIld.68876$Tq1.40327@bignews1.bellsouth.net>...
Quote:
David wrote:
"Nik Simpson" <n_simpson@bellsouth.net> wrote in message
news:<p7Ikd.62344$Tq1.30098@bignews1.bellsouth.net>...
SonjoyDe wrote:
How do I overcome the arbitration issues when writing
simultaneously under Windows Storage Server 2003?

To the best of my knowledge, the only way to access a Windows 2003
Storage Server box is through CIFs which is a filesharing protocol,
so file access issues are handled in the OS. Of course W2003 Storage
Server may well not be able to handle multiple clients writing
video, it depends on the type of video being written, for example
uncompress broadcast quality video is probably not going to work for
you.



The other option is a clustered filesystem like SGI's CXFS. The allows
multiple hosts to share the same file system and is design for high
bandwidth applications like video editing suites. The clients can be
Windows or any other platform, each have direct attach to the storage.

David

Agreed, but that's a whole different thing to the CIFS related question
asked by the OTP and requires a very different solution in terms of hardware
(i.e. a SAN not a NAS.) Agreed if video editing is the goal, then a global
SAN filesystem is the way to go. Just curious, do any of the global
filesystems support iSCSI yet?
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