| Title: | ase |
| Moderator: | SMURF::GROSSO |
| Created: | Thu Jul 29 1993 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2114 |
| Total number of notes: | 7347 |
Hi, - I have several customers that are very happy when I describe Memory Channel performances (bandwith and low latency) but they not longer happy when I explain that, to reach these performances, they have to : - be limited to raw devices (and not file systems) with TCR, - use oracle with OPS, - write their own application on top of memory channel APIs ... The only good news they see again is that MC can be used as an IP network, and so, they all have the following idea : "install ASE and MC driver on all the cluster nodes, create simple nfs/disk services (used as file systems) and use Memory Channel for NFS (to export ASE services on the other nodes of the cluster) or all TCP/UDP applications" I remember to have done some simple network tests on MC (like ping) ; so I would like to ask several questions before starting more tests on my configs ? - is it officialy supported (ASE + MC driver) ? - is it normaly installable (I have not yet tried) ? - an other way would be to install a full TCR but what about correct Cluster communication across MC if this one is fully loaded by some IP application ? - has someone some idea about networking performances with MC (compared with fddi)? By advance, thanks for any information, Dominique Salomon CSS Annecy - France
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1956.1 | That's a bit wide | smurf::PBECK | Paul Beck | Tue Mar 18 1997 13:09 | 3 |
Any chance you could retry that in 80 columns so it's readable?
(It's so heavily formatted that I'd butcher it with a quick'n'dirty
rewrap.)
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| 1956.2 | Text in 80 columns. | ANNECY::SALOMON_D | Wed Mar 19 1997 02:37 | 39 | |
I am sorry ; follows my text in 80 columns. - I have several customers that are very happy when I describe Memory Channel performances (bandwith and low latency) but they no longer happy when I explain that, to reach these performances, they have to : - be limited to raw devices (and not file systems) with TCR, - use oracle with OPS, - write their own application on top of memory channel APIs ... The only good news they see again is that MC can be used as an IP network, and so, they all have the following idea : "install ASE and MC driver on all the cluster nodes, create simple nfs/disk services (used as file systems) and use Memory Channel for NFS (to export ASE services on the other nodes of the cluster) or all TCP/UDP applications" I remember to have done some simple network tests on MC (like ping) ; so I would like to ask several questions before starting more tests on my configs ? - is it officialy supported (ASE + MC driver) ? - is it normaly installable (I have not yet tried) ? - an other way would be to install a full TCR but what about correct Cluster communication across MC if this one is fully loaded by some IP application ? - has someone some idea about networking performances with MC (compared with fddi)? By advance, thanks for any information, Dominique Salomon CSS Annecy - France | |||||
| 1956.3 | check performance data first | ALFAM7::GOSEJACOB | Wed Mar 19 1997 04:25 | 10 | |
re .0
People who know the implementation details should have a more complete
view of things here. But as far as I remember the IP implementation on
top of MC was not tuned for performance. In other words you will be
using a standard IP stack on top of MC. I have not done any real
performance tests but you may want to check that using MC in your case
would actually improve NFS performance compared to lets say a FDDI ring
or a giga switch. Just my 2 Pfennige.
Martin
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