RE: RAID 6 mdadm
> -----Original Message-----
> From: Gary Dale [mailto:garydale@rogers.com]
> Sent: Thursday, 11 April 2013 12:39 AM
> To: debian
> Subject: Re: RAID 6 mdadm
>
> On 10/04/13 10:15 AM, Muhammad Yousuf Khan wrote:
> > i was watch a person's video regarding RAID 6 with mdadm
> > his configuration was very low, some old system probably
> > 2GB RAM, 3x8TB Hard Drives, 4port Ethernet card for channeling.
> > and the guy was giving review of his home server. he says he will
> > channel the 4 port Ethernet to achive 4Gbps network throughput. and 2
> > drive redundancy with RAID6.
> >
> > my question is
> > since i can not invest that huge money for testing so just asking from
> > experience users. isn't it going to be a problem because of bottleneck
> > and limited throughput of SATA 7200 rpm 3TB drives?
> >
> > actually what i need is 4GB LAN throughput with teaming (802.3ad) for
> > data storage to backup VMs and same huge data manipulations will be
> > done. so just confused if it going to work or not.
> >
> > Thanks,
> > MYK
> >
>
> That's an odd setup. Why use RAID6 with only 3 drives? He'd get better
> performance with RAID1 with only 3 drives.
>
> However, your question is about performance. My RAID5 array with SATA 2
> drives gets about 200MBps. SATA 3 performance should be double that.
>
> Caching is critical. Disk access is dramatically slower than memory
> access so that your real throughput will depend on how much disk access
> can be avoided or optimized.
This is really not debian related at all
>
>
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