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Author Topic: Beta 1.10 FW, EARS and RAID 1  (Read 9250 times)

badmem

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Beta 1.10 FW, EARS and RAID 1
« on: May 29, 2011, 08:12:42 AM »
Is anybody successfully using a DNS-323 with EARS 2TB drives in RAID 1 mirroring? I am thinking of updating my DNS-323 from 2x 1TB to 2x 2TB drives. Unfortunately, I can only find 2TB WD EARS drives locally. Reading through the forums I am confused.

It seems that the 1.10 Beta FW supports AFT drives like the EARS in single drive or non-RAID configurations. Does the 1.10 Beta FW also work with RAID 1 mirroring reliably or are there performance problems as reported in the older firmwares?

Thank you.
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OlegMZ

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Re: Beta 1.10 FW, EARS and RAID 1
« Reply #1 on: June 11, 2011, 09:36:05 PM »
I've been using 1.10b7 in my DNS-323 with 2xWD15EARS in RAID1 for more than a month now. Wanted to wait final release of 1.10 first but started having too many performance issues when amount of data approached 600Gb. Finally I pulled the trigger, backed up all the data, reflushed the device and reformatted the drives.
So far everything is OK for me, except some glitches of uPnP server. The HDD performance  is much better as well. I had file transfers and video playbacks freezing even on "light" files  before 1.10. Now even MTS files from HDTV video camera with max quality play smoothly.

NAS test running on my old Dell laptop with 1Gb NIC card (no Jumbo frames) showed writing to NAS around 9 GBMBytes/s, and reading 12 - 15 GBMB/s depending on file size and which local HDD I use - laptop internal or external USB attached drive.
NAS is configured with RAID1 EXT3 - slowest possible combination I guess.
« Last Edit: June 12, 2011, 08:05:11 PM by OlegMZ »
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fordem

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Re: Beta 1.10 FW, EARS and RAID 1
« Reply #2 on: June 12, 2011, 05:35:13 PM »
Quote from: OlegMZ on June 11, 2011, 09:36:05 PM
NAS test running on my old Dell laptop with 1Gb NIC card (no Jumbo frames) showed writing to NAS around 9 GBytes/s, and reading 12 - 15 GB/s depending on file size and which local HDD I use - laptop internal or external USB attached drive.
NAS is configured with RAID1 EXT3 - slowest possible combination I guess.

I take it you realise those speeds are "unachievable" over a gigabit network?  Maybe you'd like to correct the typo.
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RAID1 is for disk redundancy - NOT data backup - don't confuse the two.

badmem

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Re: Beta 1.10 FW, EARS and RAID 1
« Reply #3 on: June 13, 2011, 08:08:14 AM »
Thanks for the reply Oleg. Do you know if the 15EARS drives you have installed use Advanced Format ie WD15EARX or WD15EARS?

Thanks again.
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strevellick

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Re: Beta 1.10 FW, EARS and RAID 1
« Reply #4 on: June 17, 2011, 12:57:59 PM »
I have been using 2-2TB WD20EARS (mirrored) for about 2 months now successfully without issue.  Using the 1.10 firmware.
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badmem

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Re: Beta 1.10 FW, EARS and RAID 1
« Reply #5 on: June 18, 2011, 08:08:05 AM »
Thanks for the replies. I took the plunge, bought two 2Tb WD20EARS, updated to the latest 1.10b7 firmware and installed the drives in a RAID 1 configuration. The drives formatted and the RAID 1 volume was created. So far so good. I am using this DNS-323 as a secondary NAS backup to my main NAS, so I am just using it as a test box. I have been copying files over to it for the last day without problems.
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