[DRBD-user] Anyone Get Write Speeds over 150MB/s Writes using DRBD?

Gary W. Smith gary at primeexalia.com
Thu Mar 9 18:05:57 CET 2006

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Rik, 

I believe in your case it's going to be all about the speed of the drives.  I'm not sure that even 8 10k rpm drives configured with stripe/parity will achieve this in a standard environment.  

The bigger question isn't the speed of the writes but rather the delta changes per second to the database.


-----Original Message-----
From: drbd-user-bounces at lists.linbit.com on behalf of Rik Herrin
Sent: Thu 3/9/2006 3:06 AM
To: drbd-user at lists.linbit.com
Subject: [DRBD-user] Anyone Get Write Speeds over 150MB/s Writes using DRBD?
 
Hi,
  I am currently evaluating the use of drbd for
real-time replication of an Oracle DB. The hardware
that the Oracle DB will be running on involves 2
dual-core AMD Opterons, 4 GB RAM, an LSI MegaRAID
320-2X SCSI RAID Controller with 512MB NVRAM, and 10k
SCSI Hard drives (8 of them).  An Intel Pro/1000 MT
Quad Pro Server Adapter card will be used for
networking, with 2 ports dedicated to the DRBD
connection to a similarly configured machine.  Would
drbd be a bottleneck in this configuration?  The NIC
should be able to deliver about 180MB/s or so and so
should the SCSI RAID controller.  Anyone have
experience with this type of hardware?  Thank you for
your time.

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