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<div class="gmail_quote">On Tue, May 24, 2011 at 9:29 AM, Andre <span dir="ltr"><<a href="mailto:mythtv-list@dinkum.org.uk">mythtv-list@dinkum.org.uk</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>On 24 May 2011, at 14:20, Jean-Yves Avenard wrote:<br><br>> On 24 May 2011 21:34, Andre <<a href="mailto:mythtv-list@dinkum.org.uk">mythtv-list@dinkum.org.uk</a>> wrote:<br>
>><br>>> Did you do anything about head reloads?<br>><br>> No..<br>><br>> What's that?<br><br>WDXXEARS & other "Green" drives aggressively park their heads to conserve power, many believe that this quickly exceeds the head reload design life.<br>
<br><a href="http://forums.anandtech.com/showthread.php?t=2085685" target="_blank">http://forums.anandtech.com/showthread.php?t=2085685</a><br><br>Mine are already showing more reloads than drives I have had for several years, I plan to address this next week.<br>
<br>><br>> Only symptoms is that the console got filled with stuff like:<br>><br>> [ 2490.288981] ata6.00: status: { DRDY DF ERR }<br>> [ 2490.288982] ata6.00: error: { ABRT }<br>> [ 2490.292515] ata6.00: failed to enable AA(error_mask=0x1)<br>
> [ 2490.297067] ata6.00: failed to enable AA(error_mask=0x1)<br>> [ 2490.297090] ata6.00: configured for UDMA/133 (device error ignored)<br>> [ 2490.297107] ata6: EH complete<br>> [ 2490.297400] ata6.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0<br>
> [ 2490.297405] ata6.00: irq_stat 0x40000001<br>> [ 2490.297408] ata6.00: failed command: READ DMA<br>> [ 2490.297414] ata6.00: cmd c8/00:08:18:00:00/00:00:00:00:00/e0 tag 0<br>> dma 4096 in<br>> [ 2490.297415] res 61/04:08:18:00:00/00:00:00:00:00/e0 Emask<br>
> 0x1 (device error)<br>> [ 2490.297418] ata6.00: status: { DRDY DF ERR }<br>><br>><br>> And the drive gets removed from my RAID array.<br><br>There are a lot of discussions about these drives being unsuitable for use in raid arrays due to long timeouts waiting for deep data recovery, TLER etc.<br>
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<div>Isn't this more of an issue on hardware RAID's than software based RAID's?</div>
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<div>(Sorry if I haven't been paying attention to OP's set up)</div></div>