Ross S. W. Walker wrote: >> -----Original Message----- >> From: centos-bounces at centos.org >> [mailto:centos-bounces at centos.org] On Behalf Of Karl R. Balsmeier >> Sent: Tuesday, May 22, 2007 2:28 PM >> To: centos at centos.org >> Subject: [CentOS] Vsftpd & Iscsi - fast enough >> >> To extend space on our 64-bit centos FTP servers, we are considering >> setting them up to work with an existing PromiseRAID system via iscsi. >> >> -just curious if anyone here knows if iScsi is fast enough to >> serve up >> all the images? >> >> -might it be something where we get dedicated cards and put the iScsi >> traffic on its own Vlan? >> >> Just curious if this would hold up under alot of traffic, >> like weather >> images and the like... >> > > The ability of iSCSI to support high throughput depends on: > > 1) How the back-end storage being served up by iSCSI is configured > 2) How the network interconnects between the iSCSI targets and > initiators are configured > 3) How well the FTP software does at reading the data from disk and > pumping it out the network > > 1Gbps ethernet can handle up to 115MB/s per interface. Using MPIO > round-robin over several interfaces you can continue to add throughput > if the application can scale well across these multiple paths. > > -Ross > > hey this part is fascinating, -so how would one practically deploy this, -say 4 GB NICs and some supported hardware? for traffic 100 - 200 megs daily perhaps this is too much? On the storage side, not sure if MPIO will auto-detect the device, but maybe it'll see it. -wonder if Vsftpd would play well with all of this. -krb > ______________________________________________________________________ > This e-mail, and any attachments thereto, is intended only for use by > the addressee(s) named herein and may contain legally privileged > and/or confidential information. If you are not the intended recipient > of this e-mail, you are hereby notified that any dissemination, > distribution or copying of this e-mail, and any attachments thereto, > is strictly prohibited. If you have received this e-mail in error, > please immediately notify the sender and permanently delete the > original and any copy or printout thereof. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >