==========crontab配置===============
#vi /etc/crontab
SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/binMAILTO=rootHOME=/# run-parts01 * * * * root run-parts /etc/cron.hourly02 4 * * * root run-parts /etc/cron.daily22 4 * * 0 root run-parts /etc/cron.weekly42 4 1 * * root run-parts /etc/cron.monthly*/1 * * * * root /usr/bin/php /opt/openfiler/var/etc/snp_script.php >> /root/rec.ini蓝色字体标注标识要添加的部分。
在每一行的开头有五个“*”号，分别表示分、时、日、月、星期。“*/1”表示每分钟执行一次。
所有路径必须为绝对路径。
===============php部分===================
#!/usr/bin/php load($snapshots_path); $snp_XMLDoc=$snp_xml->getElementsByTagName("snapshots")->item(0); $snp_date=date("Y-m-d H:i:s"); $xml=new DOMDocument('1.0'); $xml->load($schedules_path); $XMLDoc=$xml->getElementsByTagName("schedules")->item(0); $isLast=false; //========DOM读取XML======== $schedules=array(); $cou=0; foreach($XMLDoc->getElementsByTagName("schedule") as $schedule){ $sch=array(); $sch["name"]=$schedule->getAttribute("name"); $sch["interval"]=$schedule->getAttribute("interval"); $sch["count"]=$schedule->getAttribute("count"); $sch["size"]=$schedule->getAttribute("size"); $cou1=0; $sch_volumes=array(); foreach($schedule->getElementsByTagName("volume") as $sch_volume){ $last=$sch_volume->getAttribute("last"); if(empty($last)||$last==""){ global $isLast; $last=$sch_volume->getAttribute("time"); $attr=$xml->createAttribute("last"); $attr->appendChild($xml->createTextNode($last)); $sch_volume->appendChild($attr); $isLast=true; $xml->save($schedules_path); } $sch_volumes[$cou1++]=array($sch_volume->nodeValue,$last,$sch_volume->getAttribute("vg")); } $sch["volumes"]=$sch_volumes; $schedules[$cou++]=$sch; } foreach($schedules as $schedule){ $interval=explode(" ",$schedule["interval"]); //print_r($interval); switch($interval[1]){ case "min": $in=4; break; case "hour": $in=3; break; case "day": $in=2; break; case "month"; $in=1; break; case "year": $in=0; break; case "week"; $in=-1; break; } print("Last:".($isLast?"yes":"no")."\n"); foreach($schedule["volumes"] as $volume){ $start_time=explode("-",$volume[1]); if($in==-1){ if($isLast||($now[$in]-$start_time[$in]!=0&&($now[2]-$start_time[2])%(7*$interval[0])==0)){ shell_exec("/sbin/lvcreate -s -L ".$schedule["size"]." -n of.snapshot.".$volume[0].".autosn".$snp_date_rec." ".$volume[2]); } } else if($isLast||($now[$in]-$start_time[$in]!=0&&($now[$in]-$start_time[$in])%$interval[0]==0)){ //print("\n".$interval[0].":\n"); $command="/sbin/lvcreate -s -L ".$schedule["size"]." -n of.snapshot.".$volume[0].".autosn".$snp_date_rec." /dev/".$volume[2]."/".$volume[0]; print $command; $xpath=new DOMXPath($xml); $query="/schedules/user/schedule[@name='".$schedule["name"]."']/volume[@vg='".$volume[2]."' and text()='".$volume[0]."']"; $node=$xpath->query($query)->item(0); $node->setAttribute("last",$snp_date_rec); $xml->save($schedules_path); shell_exec($command); $snp=$snp_xml->createElement("snapshot"); //print $snp_xml->saveXML(); $attr=$snp_xml->createAttribute("id"); $attr->appendChild($snp_xml->createTextNode("autosn".$snp_date_rec)); $snp->appendChild($attr); $attr=$snp_xml->createAttribute("lvname"); $attr->appendChild($snp_xml->createTextNode($volume[0])); $snp->appendChild($attr); $attr=$snp_xml->createAttribute("vgname"); $attr->appendChild($snp_xml->createTextNode($volume[2])); $snp->appendChild($attr); $attr=$snp_xml->createAttribute("share"); $attr->appendChild($snp_xml->createTextNode("no")); $snp->appendChild($attr); $attr=$snp_xml->createAttribute("rotateid"); $attr->appendChild($snp_xml->createTextNode("100")); $snp->appendChild($attr); $attr=$snp_xml->createAttribute("timestamp"); $attr->appendChild($snp_xml->createTextNode($snp_date)); $snp->appendChild($attr); $attr=$snp_xml->createAttribute("size"); $attr->appendChild($snp_xml->createTextNode($schedule["size"])); $snp->appendChild($attr); $snp_XMLDoc->appendChild($snp); print $snp_xml->saveXML(); } //删除过期快照 $count=0; foreach($snp_XMLDoc->getElementsByTagName("snapshot") as $snapshot){ if($volume[0]==$snapshot->getAttribute("lvname")&&$snapshot->getAttribute("rotateid")==100){ $count++; } } //print "\n\n".$count.": ".$schedule["count"]; if($count>$schedule["count"]){ foreach($snp_XMLDoc->getElementsByTagName("snapshot") as $snapshot){ $snpname=$snapshot->getAttribute("id"); $lvname=$snapshot->getAttribute("lvname"); if($volume[0]==$lvname && $snapshot->getAttribute("rotateid")==100){ $command="/sbin/lvremove -f /dev/".$volume[2]."/of.snapshot.".$volume[0].".".$snpname; print "\n".$command."\n"; shell_exec($command); $snp_XMLDoc->removeChild($snapshot); break; } } } } } $snp_xml->save($snapshots_path); print("\n====================================== \n"); ?>
==========XML部分============
snapshot.xml:
schedules.xml:
mir1