Extreme Slow Replication on HP Hardware

[Manfred]

I'am in contact with OPEN-E Support. They didn't really solved the Problem yet, but one of the
OPEN-E Support Guy's improved the Performance up to 20 MB/Sec on my Lab Systems.
Probably there ist a Problem with the DRDB Configuration.

The OEPN-E Support Statement is: we are working.....

I'am in upbeat mood!

[budd79]

Hi there,

Did you get this resolved?

Thanks,

[Manfred]

Hi,

OPEN-E Support solved the Problem not yet. They promised me a Patch for the coming Version.

BUT - using Intel Dualhead 82571EB (rev 06) NIC for Replication works in another Configuration
very well (40MB/Sec) for Syncronisation.

So, may bei the Broadcom and/or older Intel Gigabit NIC's causing Problems.

[jon hatton-brown]

Yes I am using HP DL180 G6's with Replication I was getting 600Kb/s replication speeds. Open-e Support had to remote into our DSS servers and tweak settings to get them to replicate at 60MB/s.

We are now looking at getting new RAID cards, as the HP Storageworks P212's are useless.

[joolsc]

Are there any details on what was done to achieve this faster speed? We have a similar situation with a couple of HP DL360's with MSA arrays, not getting as much throughput on the sync NIC's as I would expect, used both onboard and NC360T dual cards with similar results.

[Gr-R]

you can tune the drdb.
search this forum for info on how.

[Al-S]

Try to use the latest build available now, as with each new build there is new and updated drivers.
New builds can be found at:
http://www.open-e.com/account/products-and-updates/

[Manfred]

hi,

it seems that the missing battery buffered cache has caused the performance problems
with the replication.

we have installed several open-e SAN's base on HP Hardware (most DL 360/380 G5/G6/G7 - sometimes with additional MSA 60/70) with replication in the last 12 month. either iSCSI oder FC - no problems with the replication performance (ca. 80 -90 MB/Sec).