[DRBD-user] Antwort: Re: Hardware-recomendation needed

Robert.Koeppl at knapp.com Robert.Koeppl at knapp.com
Wed Apr 4 14:15:21 CEST 2012

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


Regarding Throughput: 
We have seen more than 700MB/s with two 10Gbit ethernet in balance-rr 
bonding back to back connection, 10 Disk 136GB 15k SAS RAID 10, 
LSI-Controller with 512MB Cache, BBU. scheduler: deadline, DRBD 8.3.11.
Mit freundlichen Grüßen / Best Regards

Robert Köppl

Customer Support & Projects 
Teamleader IT Support

KNAPP Systemintegration GmbH
Waltenbachstraße 9
8700 Leoben, Austria 
Phone: +43 3842 805-322
Fax: +43 3842 82930-500
robert.koeppl at knapp.com 
www.KNAPP.com 

Commercial register number: FN 138870x
Commercial register court: Leoben

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Lukas Gradl <proxmox at ssn.at> 
Gesendet von: drbd-user-bounces at lists.linbit.com
04.04.2012 04:20

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drbd-user <drbd-user at lists.linbit.com>
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Re: [DRBD-user] Hardware-recomendation needed






> Yes.
> 
> I benchmarked exactly as described in that doc. 

And a little addition:

I created a 3 32GB disks for a KVM-Guest on that SATA-Disk:

First on local LVM, second on DRBD using external metadata and third on
DRBD using internal metadata.

Each of that 32GB disks was partitioned to one 32GB partition and was
formatted inside the KVM-Guest (Debian Squeeze, disks connected as
virtio-device) with ext3.

The formatting took 19s for local lvm, 95s for drbd with external
metadata and 133s for drbd with internal metadata...

regards
Lukas

-- 
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Lukas Gradl <proxmox#ssn.at>
Eduard-Bodem-Gasse 6
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Tel: +43-512-214040-0
Fax: +43-512-214040-21
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