TeraStation Larger Disks and RAID5 - Revision history

Wikipediamaster: category:Terastation

Wikipediamaster — Mon, 31 Oct 2011 17:46:15 GMT

← Older revision		Revision as of 17:46, 31 October 2011
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	reboot		reboot
	</pre>		</pre>
		+
		+	[[category:Terastation]]

Itimpi: /* Recovering After a Drive Failure */

Itimpi — Wed, 06 Oct 2010 06:47:09 GMT

Recovering After a Drive Failure

← Older revision		Revision as of 06:47, 6 October 2010
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	In the following commands replace the '?' by a, b, c or d to correspond to drive 1, 2, 3 or 4 depending on what drive you are trying to replace.		In the following commands replace the '?' by a, b, c or d to correspond to drive 1, 2, 3 or 4 depending on what drive you are trying to replace.

		+	* Insert the replacement disk. It should be unformatted and have no partitions already allocated.
		+	* Boot the system and then login via telnet. You should will be getting an indication that a disk has failed - you can ignore it at this time.
	* Re-partition drive as described earlier. If you are not sure of the sizes of the partitions then you can use the command		* Re-partition drive as described earlier. If you are not sure of the sizes of the partitions then you can use the command
	<pre>		<pre>
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	mkfs.xfs -f /dev/sd?4		mkfs.xfs -f /dev/sd?4
	</pre>		</pre>
-	If partition 4 is an extended partition, format partition 5 and up instead.	+	If partition 4 is an extended partition, format partition 5 and up instead of partition 4.
	* Add partition 3 back into the /dev/md1 array		* Add partition 3 back into the /dev/md1 array
	<pre>		<pre>
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	</pre>		</pre>
	* Reboot system		* Reboot system
		+	* System should now boot as normal.
	<pre>		<pre>
	reboot		reboot

Itimpi: /* SATA Disks on IDE Based Systems */

Itimpi — Sat, 02 Oct 2010 13:30:50 GMT

SATA Disks on IDE Based Systems

← Older revision		Revision as of 13:30, 2 October 2010
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	[[Image: Pata-sata.jpg]]		[[Image: Pata-sata.jpg]]

-	The board plugged into the back of the drive and simply converted the connectors from SATA to IDE and there was just enough clearance inside the case to fit the power and IDE cables. The cables are a very tight fit, but you can give yourself a little more space by drilling new holes in the cage that holds the drives about a 1/4 inch nearer the front than the existing holes. This can only be done on the top part of the cage but that is normally enough to hold the drive firmly.	+	The board plugged into the back of the drive and simply converted the connectors from SATA to IDE and there was just enough clearance inside the case to fit the power and IDE cables.
		+
		+	<font color="red">TIP:</font> The cables are a very tight fit, but you can give yourself a little more space by drilling new holes in the cage that holds the drives about a 1/4 inch nearer the front than the existing holes. This can only be done on the top part of the cage but that is normally enough to hold the drive firmly.
	<br>		<br>

Itimpi: /* SATA Disks on IDE Based Systems */

Itimpi — Sat, 02 Oct 2010 13:28:46 GMT

SATA Disks on IDE Based Systems

← Older revision		Revision as of 13:28, 2 October 2010
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	=SATA Disks on IDE Based Systems=		=SATA Disks on IDE Based Systems=
-	~~The original TeraStation and the TeraStation Home Server are IDE based.~~ It is possible to use disks larger than 750GB on an IDE based system via a SATA/IDE converter, although you have to make sure you get one small enough to fit into the available space. The ones tested were obtained via eBay, and consisted of a small PCB that was the same size as the back of a 3.5" drive with a SATA connector on one side and an IDE socket on the other as shown below:	+	It is possible to use disks larger than 750GB on an IDE based system via a SATA/IDE converter, although you have to make sure you get one small enough to fit into the available space. The ones tested were obtained via eBay, and consisted of a small PCB that was the same size as the back of a 3.5" drive with a SATA connector on one side and an IDE socket on the other as shown below: For large disks a SATA drive plus a converter is normally cheaper than the equivalent size IDE drive, so this is attractive from a price point of view.

	[[Image: Pata-sata.jpg]]		[[Image: Pata-sata.jpg]]

-	The board plugged into the back of the drive and simply converted the connectors from SATA to IDE and there was just enough clearance inside the case to fit the power and IDE cables. ~~For large disks~~ a ~~SATA drive plus~~ a ~~converter~~ is normally ~~cheaper than~~ the ~~equivalent size IDE~~ drive~~, so this is attractive from a price point of view~~.	+	The board plugged into the back of the drive and simply converted the connectors from SATA to IDE and there was just enough clearance inside the case to fit the power and IDE cables. The cables are a very tight fit, but you can give yourself a little more space by drilling new holes in the cage that holds the drives about a 1/4 inch nearer the front than the existing holes. This can only be done on the top part of the cage but that is normally enough to hold the drive firmly.
-		+
	<br>		<br>
		+
	=Approach=		=Approach=

Yeahimdukenukem: /* Setting up the RAID5 Arrays */

Yeahimdukenukem — Mon, 12 Oct 2009 09:58:20 GMT

Setting up the RAID5 Arrays

← Older revision		Revision as of 09:58, 12 October 2009
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	Partition number (1-4): 3		Partition number (1-4): 3
	First cylinder (66-121601, default 66):		First cylinder (66-121601, default 66):
		+	Using default value 66
	Last cylinder or +size or +sizeM or +sizeK (66-121601, default 121601): +500000M		Last cylinder or +size or +sizeM or +sizeK (66-121601, default 121601): +500000M

Itimpi: /* Setting up the RAID5 Arrays */

Itimpi — Sun, 11 Oct 2009 08:26:55 GMT

Setting up the RAID5 Arrays

← Older revision		Revision as of 08:26, 11 October 2009
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	Note: Can be skipped when using only 2 arrays.<br>		Note: Can be skipped when using only 2 arrays.<br>
	After creating partition 4 as extended you will not be prompted to enter the wanted size, instead you will have to type 'n' again, then you will be prompted to enter the size for partition 5 and after that for partition 6 and so on.<br>		After creating partition 4 as extended you will not be prompted to enter the wanted size, instead you will have to type 'n' again, then you will be prompted to enter the size for partition 5 and after that for partition 6 and so on.<br>
-	At this point you will have to install itimpi's updated [[http://homepage.ntlworld.com/itimpi/opentera.htm#BUSYBOX busybox]] to get an ''mknod'' ~~cvommand~~ available.<br>	+	At this point you will have to install itimpi's updated [[http://homepage.ntlworld.com/itimpi/opentera.htm#BUSYBOX busybox]] to get an ''mknod'' command available.<br>
	Now type		Now type
	<pre>		<pre>

Itimpi: /* Setting up the RAID5 Arrays */

Itimpi — Sun, 11 Oct 2009 08:26:07 GMT

Setting up the RAID5 Arrays

← Older revision		Revision as of 08:26, 11 October 2009
Line 206:		Line 206:
	Note: Can be skipped when using only 2 arrays.<br>		Note: Can be skipped when using only 2 arrays.<br>
	After creating partition 4 as extended you will not be prompted to enter the wanted size, instead you will have to type 'n' again, then you will be prompted to enter the size for partition 5 and after that for partition 6 and so on.<br>		After creating partition 4 as extended you will not be prompted to enter the wanted size, instead you will have to type 'n' again, then you will be prompted to enter the size for partition 5 and after that for partition 6 and so on.<br>
-	At this point you will have to install ''itimpi''s busybox to get an mknod.<br>	+	At this point you will have to install itimpi's updated [[http://homepage.ntlworld.com/itimpi/opentera.htm#BUSYBOX busybox]] to get an ''mknod'' cvommand available.<br>
	Now type		Now type
	<pre>		<pre>

Itimpi: /* Setting up the RAID5 Arrays */

Itimpi — Sun, 11 Oct 2009 08:22:41 GMT

Setting up the RAID5 Arrays

← Older revision		Revision as of 08:22, 11 October 2009
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	* Repeat repartitioning and formatting the new partition for each of the four disks		* Repeat repartitioning and formatting the new partition for each of the four disks
	* Use the Web GUI to create the RAID5 partition and any wanted shares.		* Use the Web GUI to create the RAID5 partition and any wanted shares.
		+
		+	<br><br>

	=Using Symbolic Links to give Single View of Arrays=		=Using Symbolic Links to give Single View of Arrays=

Itimpi: /* Using Symbolic Links to give Single View of Arrays */

Itimpi — Sun, 11 Oct 2009 08:13:44 GMT

Using Symbolic Links to give Single View of Arrays

← Older revision		Revision as of 08:13, 11 October 2009
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	=Using Symbolic Links to give Single View of Arrays=		=Using Symbolic Links to give Single View of Arrays=

-	If you follow the normal process of setting up each array with its own share then when working at the Client level you will see each array independently.	+	If you follow the normal process of setting up each array with its own share then when working at the Client level you will see each array independently. By using linux symbolic links it is possible to make the contents of one array appear within the other array.

		+	As an example:
	<pre>		<pre>
	cd /mnt/array1/share		cd /mnt/array1/share
	ln -s /mnt/array2 _array2		ln -s /mnt/array2 _array2
	</pre>		</pre>
-	This would make the contents of array2 appear under the '_array2' folder ~~with~~ the first array.	+	This would make the contents of array2 appear under the '_array2' folder within the first array.

	<br><br>		<br><br>

Yeahimdukenukem: /* Setting up the RAID5 Arrays */

Yeahimdukenukem — Sun, 11 Oct 2009 07:45:12 GMT

Setting up the RAID5 Arrays

← Older revision		Revision as of 07:45, 11 October 2009
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	4.1. Creating more than 4 partitions:<br>		4.1. Creating more than 4 partitions:<br>
		+	Note: Can be skipped when using only 2 arrays.<br>
	After creating partition 4 as extended you will not be prompted to enter the wanted size, instead you will have to type 'n' again, then you will be prompted to enter the size for partition 5 and after that for partition 6 and so on.<br>		After creating partition 4 as extended you will not be prompted to enter the wanted size, instead you will have to type 'n' again, then you will be prompted to enter the size for partition 5 and after that for partition 6 and so on.<br>
	At this point you will have to install ''itimpi''s busybox to get an mknod.<br>		At this point you will have to install ''itimpi''s busybox to get an mknod.<br>
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	mknod -m 755 /dev/sda6 b 3 ??		mknod -m 755 /dev/sda6 b 3 ??
	</pre>		</pre>
		+	Now type
		+	<pre>
		+	ls -l /dev/sda*
		+	</pre>
		+	again and you should see the new device. Repeat this for all discs.

	5. Reboot:		5. Reboot: