`<div dir="ltr"><br><div class="gmail_extra"><div class="gmail_quote">On Wed, Jun 11, 2014 at 8:12 PM, Paul B. Henson <span dir="ltr"><<a href="mailto:henson@acm.org" target="_blank">henson@acm.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="">On Wed, Jun 11, 2014 at 07:01:01PM +0200, Natxo Asenjo wrote:<br>
<br>
> 1. c4t13d1 <ATA-WDCWD1600BJKT-7-1A11 cyl 19454 alt 2 hd 255 sec 63><br>
> /pci@0,0/pci1022,9603@2/pci1014,3b1@0/sd@d,1<br>
> 2. c4t14d1 <ATA-WDCWD2500BPVT-0-1A01 cyl 30398 alt 2 hd 255 sec 63><br>
> /pci@0,0/pci1022,9603@2/pci1014,3b1@0/sd@e,1<br>
</div>[...]<br>
<div class="">> # zpool attach -f rpool c4t13d1s0 c4t14d1s0<br>
> cannot attach c4t14d1s0 to c4t13d1s0: devices have different sector<br>
> alignment<br>
><br>
> Any ideas?<br>
<br>
</div>Looks like the WD2500BPVT has "Advanced Format Technology", ie 4k<br>
sectors:<br>
<br>
<a href="http://www.newegg.com/Product/Product.aspx?Item=N82E16822136565" target="_blank">http://www.newegg.com/Product/Product.aspx?Item=N82E16822136565</a><br>
<br>
Whereas the WD1600BJKT is a classic 512 byte sector device.<br>
<br>
You can't currently add a 4k sector drive to a vdev using 512 byte sectors.<br>
Any chance you could do the initial install to the 4k device, and then<br>
add the 512 byte device as the second half of the mirror? I think that<br>
would work. Or you could trick the OS into thinking the 512 byte device<br>
actually has 4k sectors...<br>
<br>
<a href="http://blog.delphix.com/gwilson/2012/11/15/4k-sectors-and-zfs/" target="_blank">http://blog.delphix.com/gwilson/2012/11/15/4k-sectors-and-zfs/</a><br>
</blockquote></div><br></div><div class="gmail_extra">thanks for the info. I think I will reinstall to the WD2500BPVT after a quick read of both your link and Dale's ...<br><br>-- <br></div><div class="gmail_extra">regards,<br>
natxo<br></div><div class="gmail_extra"><br><br></div></div>
`