hello, I have running a cluster with 3 nodes. and I store more than 3TB data in my cluster,<br/>there are 50 VMs running on the cluster.<br/>but one node have crash yestoday, when I restart the crashed sheep, my cluster going to recovery, then, many VMs are very slow, I check the disk idle time of the vm, it often shows 0, I think many IO are block when recovery. then I check the disk, iostat and the bandwidth of all sheep nodes, there are all normal . I think the nodes hardware are very well,the reason of vms slow is caused by sheepdog , how to solve this issue? <div/><DIV style="COLOR: #000"><DIV style="PADDING-RIGHT: 0px; PADDING-LEFT: 0px; FONT-SIZE: 12px; PADDING-BOTTOM: 2px; PADDING-TOP: 2px; FONT-FAMILY: Arial Narrow">------------------ 原始邮件 ------------------</DIV><DIV style="PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><DIV><B>发件人:</B> "我自己的邮箱"<duron800@qq.com><wbr/></DIV><DIV><B>发送时间:</B> 2014年5月13日(星期二) 下午3:18</DIV><DIV><B>收件人:</B> "sheepdog-users"<sheepdog-users@lists.wpkg.org>;</DIV><DIV><B>主题:</B> sheepdog about clone</DIV></DIV></DIV><div>hello, I have a question for clone a sheepdong image.<br />my clone steps are:<br />1. I create a image named myimg</div><div>2. I write some files to myimg<br />3. I create a snapshot named 'newest', dog vdi snapshot -s <span style="line-height: 1.5;">newest myimg</span></div><div>4. I ran 'dog vdi clone -s <span style="line-height: 1.5;">newest</span><span style="line-height: 1.5;"> myimg myimg2</span><span style="line-height: 1.5;">'</span></div><div><span style="line-height: 1.5;">5. I ran 'dog vdi delete </span><span style="line-height: 1.5;">myimg</span><span style="line-height: 1.5;">'</span></div><div><span style="line-height: 1.5;">6. I attach the myimg2 to QEMU, but I can't found the files I wrote at step 2.<br /><br />what happen ? if I delete the source image '</span><span style="line-height: 1.5;">myimg</span><span style="line-height: 1.5;">', it will be make data lost ?</span></div><div><span style="line-height: 1.5;"><br /></span></div>