<div dir="ltr">Hi Igor, Hitachi SOP drive can support share extending online without disruption.<div><br></div><div>cheers</div><div>jason</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 18, 2015 at 1:15 AM, Igor Malinovskiy <span dir="ltr"><<a href="mailto:imalinovskiy@mirantis.com" target="_blank">imalinovskiy@mirantis.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><span><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Hello, everyone!</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">My letter is mainly addressed to driver maintainers, but could be interesting to everybody.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">As you probably know, on Kilo midcycle meetup we discussed share resize functionality (extend and shrink) and I already have implemented 'extend' API in Generic driver (<a href="https://review.openstack.org/182383/" target="_blank">https://review.openstack.org/182383/</a>). After implementation review we </span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">noticed that some backends are able to resize a share without causing disruptions, but others might only be able to do it disruptively (Generic driver case).</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">So I want to ask driver maintainers here:</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);font-weight:bold;vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Will your driver be able to do share extending without loss of connectivity?</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Depending on your answers, we will handle this situation differently.</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Best regards,</span></p><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Igor Malinovskiy (IRC: u_glide)</span></p><span style="font-size:15px;font-family:Arial;color:rgb(0,0,0);vertical-align:baseline;white-space:pre-wrap;background-color:transparent">Manila Core Team</span></span><br></div>
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