Re: [gpfsug-discuss] Anybody running GPFS over iSCSI?

2018-12-17 Thread Jonathan Buzzard
On Mon, 2018-12-17 at 08:50 +0100, Jan-Frode Myklebust wrote: > I’d be curious to hear if all these arguments against iSCSI shouldn’t > also apply to NSD protocol over TCP/IP? > They don't is the simple answer. Either theoretically or practically. It won't necessarily be a problem for iSCSI

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI?

2018-12-17 Thread Andrew Beattie
ug-discuss-boun...@spectrumscale.orgTo: gpfsug main discussion list Cc:Subject: Re: [gpfsug-discuss] Anybody running GPFS over iSCSI?Date: Mon, Dec 17, 2018 5:50 PM I’d be curious to hear if all these arguments against iSCSI shouldn’t also apply to NSD protocol over TCP/IP?-jf man. 17. des. 2018

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI?

2018-12-16 Thread Jan-Frode Myklebust
I’d be curious to hear if all these arguments against iSCSI shouldn’t also apply to NSD protocol over TCP/IP? -jf man. 17. des. 2018 kl. 01:22 skrev Jonathan Buzzard < jonathan.buzz...@strath.ac.uk>: > On 13/12/2018 20:54, Buterbaugh, Kevin L wrote: > > [SNIP] > > > > > Two things that I am

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI?

2018-12-16 Thread Jonathan Buzzard
On 13/12/2018 20:54, Buterbaugh, Kevin L wrote: [SNIP] Two things that I am already aware of are:  1) use jumbo frames, and 2) run iSCSI over it’s own private network.  Other things I should be aware of?!? Yes, don't do it. Really do not do it unless you have datacenter Ethernet

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI? -

2018-12-16 Thread Sanchez, Paul
To: gpfsug main discussion list Subject: Re: [gpfsug-discuss] Anybody running GPFS over iSCSI? - I have been running GPFS over iSCSI, and know of customers who are also. Probably not in the most demanding environments, but from my experience iSCSI works perfectly fine as long as you have a stable

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI? -

2018-12-16 Thread Jan-Frode Myklebust
I have been running GPFS over iSCSI, and know of customers who are also. Probably not in the most demanding environments, but from my experience iSCSI works perfectly fine as long as you have a stable network. Having a dedicated (simple) storage network for iSCSI is probably a good idea (just like

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI? -

2018-12-16 Thread Frank Kraemer
Kevin, Ethernet networking of today is changing very fast as the driving forces are the "Hyperscale" datacenters. This big innovation is changing the world and is happening right now. You must understand the conversation by breaking down the differences between ASICs, FPGAs, and NPUs in modern

Re: [gpfsug-discuss] Anybody running GPFS over iSCSI?

2018-12-15 Thread Aaron Knister
Hi Kevin, I don’t have any experience running GPFS over iSCSI (although does iSER count?). For what it’s worth there are, I believe, 2 vendors in the FC space— Cisco and Brocade. You can get a fully licensed 16GB Cisco MDS edge switch for not a whole lot

[gpfsug-discuss] Anybody running GPFS over iSCSI?

2018-12-15 Thread Buterbaugh, Kevin L
Hi All, Googling “GPFS and iSCSI” doesn’t produce a ton of hits! But we are interested to know if anyone is actually using GPFS over iSCSI? The reason why I’m asking is that we currently use an 8 Gb FC SAN … QLogic SANbox 5800’s, QLogic HBA’s in our NSD servers … but we’re seeing signs that,