Re: [zfs-discuss] [vserver] hybrid zfs pools as iSCSI targets for vserver

2011-08-07 Thread Carson Gaspar
maximum memory page size and is limited to no more than 4KB. iSCSI appears to acknowledge every individual block that is sent. That means the most data one can stream without an ACK is 4KB. That means the throughput is limited by the latency of the network rather than the bandwidth. I am _far_

Re: [zfs-discuss] [vserver] hybrid zfs pools as iSCSI targets for vserver

2011-08-07 Thread Carson Gaspar
On 8/7/11 6:36 AM, Roy Sigurd Karlsbakk wrote: That's why, back in 1992, the sliding window protocol was created (http://tools.ietf.org/html/rfc1323), so that a peer won't wait for a TCP ACK before resuming operation. It was part of TCP _long_ before that (it was never as stupid as XMODEM ;

Re: [zfs-discuss] [vserver] hybrid zfs pools as iSCSI targets for vserver

2011-08-07 Thread Roy Sigurd Karlsbakk
> > 1) is this a good idea? > > > > 2) any of you are running vserver guests on iSCSI targets? Happy > > with it? > > > Yes, we have been using iSCSI to hold vserver guests for a couple of > years now and are generally unhappy with it. Besides our general > distress at Nexenta, there is the constra

Re: [zfs-discuss] [vserver] hybrid zfs pools as iSCSI targets for vserver

2011-08-06 Thread Eugen Leitl
- Forwarded message from Gordan Bobic - From: Gordan Bobic Date: Sat, 06 Aug 2011 21:37:30 +0100 To: vser...@list.linux-vserver.org Subject: Re: [vserver] hybrid zfs pools as iSCSI targets for vserver Reply-To: vser...@list.linux-vserver.org User-Agent: Mozilla/5.0 (X11; U; Linux x86_64;

Re: [zfs-discuss] [vserver] hybrid zfs pools as iSCSI targets for vserver

2011-08-06 Thread Eugen Leitl
- Forwarded message from "John A. Sullivan III" - From: "John A. Sullivan III" Date: Sat, 06 Aug 2011 16:30:04 -0400 To: vser...@list.linux-vserver.org Subject: Re: [vserver] hybrid zfs pools as iSCSI targets for vserver Reply-To: vser...@list.linux-vserver.org X-Mailer: Evolution 2.30.