aren't you going to tell us more about it?
The June 2005 Re: ATA over ethernet (AoE)Linux Journal[/i] has a nice article on AoE.
AoE is new and promising. I'm looking forward to expermenting with it.
just wish the hardware was a little cheaper....... I guess 300/blade isn't that much.
Here's the June 2005 Re: ATA over ethernet (AoE)Linux Journal[/i] article about AoE. It's a non-routable network protocol that's more primitive than IP, giving enough capability for a server to (1) identify existing AoE disks and (2) send ATA commands and transfer data as any other ATA disk controller.
http://www.linuxjournal.com/article/8149
With gigabig ethernet, LVM, and filesystems that can be expanded, one has unlimited control over how the disks can be sliced and diced.
Since it's still talking the ATA protocol, don't expect to see support in ESX anytime in the near future. ATA is still not a "datacenter class" solution - and since it would require the inclusion of a complete ATA stack in ESX, there's not much benefit to it yet.
Especially when you can plug SATA into your SAN (whether FC attached or iSCSI) and get many of the cost benefits while retaining the benefits of "good old SCSI" - I don't really see the justification...
That last AoE comment is nonsensical. It's like saying ISA bus is no good when you can use SCSI. Apples to tree trunks. AoE is faster and cleaner than iSCSI.
AoE is a way of transporting disk commands at layer two across the network. The AoE host may actually using be SATA or SCSI devices.
May I ask what you mean by having to install a stack for AoE? Did you mean the two layer Ethernet protocol as opposed to the iSCSI four layer TCP/IP protocol?
never heard of AoE before - the only one i know about is HyperSCSI, which seems to be similar concept.(->http://www.linuxdevices.com/files/misc/hyperscsi.pdf)
what i wonder: are there any "target" implementations for that ? (in software, not in hardware)
roland
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devzero
>what i wonder: are there any "target" implementations for that ? (in software, not in hardware)
there is!
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actually, i gave AoE a try.
folks - this is cool stuf - and really trivial to get this working.
i wonder about that "big noise" regarding iSCSI.
Why isn´t there some more noise about AoE ?
who needs a storage protocol being routed over the internet?
AoE is small and elegant. I hope this will have a bright future!
roland
ps:
after reading back to the beginning of this thread, i would call this slightly off-topic, though
Roland,
Have you gotten AoE to mount as a VMFS?
i'd like to add:
there already is a AoE Target implementation as a linux kernel module - and a windows driver is in beta stage (and actually working)
regards
roland
Shoot,
Thats right I forgot about that VMFS is supposed to be on a scsi drive. I will test this next week, when I have some time and post my results here.
hello!
for trying AoE you need a target implementation - there is vblade at sourceforge.net, but I had some luck in getting an implementation as a kernel module. it`s weird that it seems to have disappeared from the author's ( Lelik P. Korchagin, lelik@price.ru) website at http://lpk.com.price.ru/~lelik/
I don't know the reason, why the author doesn't provide it to the public at the moment or why he doesn't seem to run a project website for this - but since it is GPL'ed code, i put a copy on http://www.computerkeek.de/projects/AoE/vblade-kernel-0.2.4.tar.gz
regards
roland
UPDATE: Inaccessibility of the author's website has been a temporary problem
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devzero