# tree /sys/ | grep sdb
│   ├── sdb -> ../devices/pci0000:00/0000:00:1f.2/host2/target2:0:1/2:0:1:0/block/sdb
│   │   ├── sdb -> ../../devices/pci0000:00/0000:00:1f.2/host2/target2:0:1/2:0:1:0/block/sdb
│   │   ├── 8:16 -> ../../devices/pci0000:00/0000:00:1f.2/host2/target2:0:1/2:0:1:0/block/sdb
│   │   │   │   │   │   │   └── sdb
│   │   │   │   ├── sdb -> ../../../../pci0000:00/0000:00:1f.2/host2/target2:0:1/2:0:1:0/block/sdb

Nach dem wir partprobe ausgeführt haben waren die Platten wieder da.
#partprobe

Christoph, heute ist dein Tag,

und ich denke wir alle sind froh, dass die Rechner und Programme im AStA
so laufen wie sie laufen. Ohne dich wäre die IT einfach nicht die selbe.
Bemühe dich weiter, wir brauchen dich und deinen Support!

Ein dreifaches Hoch auf unseren unermüdlichen Admin!

www.sysadminday.com

MfG,
Andreas
von der HoPo

 
#!/usr/bin/php5
<?
$link = mysql_connect('localhost', 'root', 'PW');
mysql_select_db("drupal",$link);
 
## Encoding Convert
function con($string)
{
	return iconv ("UTF-8", "ISO-8859-1", $string);
}
 
### IMPORT SACIC SITES
$sql = '
SELECT "1" AS `post_author`,
`cms_content`.create_date AS `post_date`,
`cms_content`. modified_date AS `post_date_gmt`,
`cms_content_props`.`content` AS `post_content`,
`cms_content`.content_name AS `post_title`,
"publish" AS `post_status`,
"closed" AS `comment_status`,
"closed" AS `ping_status`,
`cms_content`.`content_alias` AS `post_name`,
`cms_content`.modified_date AS `post_modified`,
`cms_content`.modified_date AS `post_modified_gmt`,
"0" AS `post_parent`,
"0" AS `menu_order`,
"page" AS `post_type`,
"0" AS `comment_count`
FROM `cms_content`, `cms_content_props`
WHERE `cms_content`.`type`="content" AND
`cms_content`.`content_id`=`cms_content_props`.`content_id`
AND NOT `cms_content_props`.`content`=""
ORDER BY `cms_content`.hierarchy';
 
$sql = 'SELECT `news_id` , `news_category_id` , `news_title` , `news_data` , `news_date` ,
`summary` , `start_time` , `end_time` , `status` , `icon` , `create_date` , `modified_date` ,
`author_id` , `news_extra`
FROM `cms_module_news`';
 
$q = mysql_query($sql,$link);
mysql_select_db("wordpress",$link);
for(;$ds = mysql_fetch_array($q);)
{
	$sql = "SELECT * FROM `wp_posts` WHERE `post_title`='".
mysql_real_escape_string(con( $ds['post_title'] )) ."'";
 
	if(mysql_num_rows(mysql_query($sql,$link)) > 0)
	{
		#UPDATE
		$sql = "UPDATE `wp_posts` SET `post_content`=
CONCAT(`post_content` , '" . mysql_real_escape_string(con( $ds['post_content'] )) ."')
WHERE `post_title`='". mysql_real_escape_string(con( $ds['post_title'] )) ."'";
	}
	else
	{
		$sql = "
		INSERT INTO `wp_posts`
		SET
		`post_author`='1',
		`post_date`='". $ds['post_date'] ."',
		`post_date_gmt`='". $ds['post_date'] ."',
		`post_content`='" . mysql_real_escape_string(con( $ds['post_content'] )) ."',
		`post_title`='". mysql_real_escape_string(con( $ds['post_title'] )) ."',
		`post_excerpt`='',
		`post_status`='publish',
		`comment_status`='closed',
		`ping_status`='closed',
		`post_password`='',
		`post_name`='". $ds['post_name'] ."',
		`to_ping`='',
		`pinged`='',
		`post_modified`='". $ds['post_modified'] ."',
		`post_modified_gmt`='". $ds['post_modified'] ."',
		`post_type`='page';
		";
	}
 
	mysql_query($sql,$link) or die (mysql_error($link));
}
 
### Import Post
mysql_select_db("drupal",$link);
 
$sql = 'SELECT `news_id` , `news_category_id` , `news_title` , `news_data` ,
`news_date` , `summary` , `start_time` , `end_time` , `status` ,
`icon` , `create_date` , `modified_date` , `author_id` , `news_extra`
FROM `cms_module_news`';
 
$q = mysql_query($sql,$link);
mysql_select_db("wordpress",$link);
for(;$ds = mysql_fetch_array($q);)
{
 
$sql = "
		INSERT INTO `wp_posts`
		SET
		`post_author`='1',
		`post_date`='". $ds['create_date'] ."',
		`post_date_gmt`='". $ds['create_date'] ."',
		`post_content`='" . mysql_real_escape_string(con( $ds['news_data'] )) ."',
		`post_title`='". mysql_real_escape_string(con( $ds['news_title'] )) ."',
		`post_excerpt`='" . mysql_real_escape_string(con( $ds['summary'] )) ."',
		`post_status`='publish',
		`comment_status`='closed',
		`ping_status`='closed',
		`post_password`='',
		`post_name`='". $ds['post_name'] ."',
		`to_ping`='',
		`pinged`='',
		`post_modified`='". $ds['modified_date'] ."',
		`post_modified_gmt`='". $ds['modified_date'] ."'
		";
 
	mysql_query($sql,$link) or die (mysql_error($link));
}
?>
 

... Bilder

...Bilder

Folgende Pakete waren dafür nötig:

sudo apt-get install ifenslave-2.6 ethtool pv

Danach Kernelmodule laden:

sudo modprobe bonding
echo "bonding" >> /etc/modules

Dann habe ich /etc/network/interfaces editiert:

auto bond0
iface bond0 inet static
address 10.0.0.1
netmask 255.255.255.0
network 10.0.0.0
broadcast 10.0.0.255
slaves eth1 eth2

Nach einem ifup bond0 auf beiden Servern stand das Netz und ich habe ein Leitungstest gemacht. Dafür habe ich auf einer Maschine Port 5000 geöffnet.

nc -ulp 5000 > /dev/null

auf der anderen habe ich dann Zufallsdaten erzeugt und gesendet.

pv < /dev/zero | nc -u 10.0.0.1 5000
12,4GB 0:01:00 [ 212MB/s] [ <=> ]

Dabei habe ich einen Spitzenwert von 212MB/s gemacht also 12,4 GiB in 60 Sekunden. Das sollte für das Raid 1 ausreichen.