UbuntuRAID0ssd - Revision history

Drew: /* /etc/fstab modifications */

2018-02-26T20:16:20Z

/etc/fstab modifications

← Older revision		Revision as of 14:16, 26 February 2018
Line 69:		Line 69:
	UUID="6239bc41-8816-47b6-b7d5-2be592f8b69b" / ext4 noatime,discard,errors=remount-ro 0 1		UUID="6239bc41-8816-47b6-b7d5-2be592f8b69b" / ext4 noatime,discard,errors=remount-ro 0 1

	# ~~Keep~~ excessive writes in /tmp, and I use a remote syslog server		# to reduce wear on ssd keep excessive writes in /tmp and use a remote syslog server
	none /tmp tmpfs size=300M 0 0		none /tmp tmpfs size=300M 0 0
	none /var/log tmpfs defaults 0 0		none /var/log tmpfs defaults 0 0

Drew at 08:46, 25 January 2018

2018-01-25T08:46:37Z

← Older revision		Revision as of 02:46, 25 January 2018
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	== Start install media ==		== Start install media ==
	=== Jump over to another tty ===		=== Jump over to another tty ===
	<~~pre~~># apt-get -y install lvm2</~~pre~~>		<syntaxhighlight lang=bash>
			# apt-get -y install lvm2
			</syntaxhighlight>

	=== Make sure partition starts on 2048 ===		=== Make sure partition starts on 2048 ===
	<~~pre~~># fdisk -l		<syntaxhighlight lang=bash># fdisk -l

	Disk /dev/sda: 32.0 GB, 32017047552 bytes		Disk /dev/sda: 32.0 GB, 32017047552 bytes
Line 27:		Line 29:
	Device Boot Start End Blocks Id System		Device Boot Start End Blocks Id System
	/dev/sdb1 2048 62533295 31265624 8e Linux LVM		/dev/sdb1 2048 62533295 31265624 8e Linux LVM
	</~~pre~~>		</syntaxhighlight>

	=== Create PV's with aligned metadata ===		=== Create PV's with aligned metadata ===
	<~~pre~~># pvcreate --metadatasize 250k /dev/sda1		<syntaxhighlight lang=bash>
	# pvcreate --metadatasize 250k /dev/sdb1</~~pre~~>		# pvcreate --metadatasize 250k /dev/sda1
			# pvcreate --metadatasize 250k /dev/sdb1
			</syntaxhighlight>

	=== Create VG and LV ===		=== Create VG and LV ===
	<~~pre~~># vgcreate vgssd /dev/sda1 /dev/sdb1		<syntaxhighlight lang=bash>
			# vgcreate vgssd /dev/sda1 /dev/sdb1
	# vgdisplay vgssd \| grep Total		# vgdisplay vgssd \| grep Total
	Total PE 15266		Total PE 15266
	# lvcreate -i2 -I128 -n lvssd vgssd --extents 15266</~~pre~~>		# lvcreate -i2 -I128 -n lvssd vgssd --extents 15266
			</syntaxhighlight>

	=== Create file system ===		=== Create file system ===
	<~~pre~~># mkfs.ext4 -v -O ^has_journal -m 0.1 -E stride=32,stripe-width=64 /dev/vgssd/lvssd		<syntaxhighlight lang=bash>
	# tune2fs -c 0 /dev/vgssd/lvssd</~~pre~~>		# mkfs.ext4 -v -O ^has_journal -m 0.1 -E stride=32,stripe-width=64 /dev/vgssd/lvssd
			# tune2fs -c 0 /dev/vgssd/lvssd
			</syntaxhighlight>

	=== Back to installer ===		=== Back to installer ===
Line 49:		Line 57:
	=== Add bits for lvm and nfs on next boot ===		=== Add bits for lvm and nfs on next boot ===
	* Jump back to a tty		* Jump back to a tty
	<~~pre~~># mount -o bind /dev /target/dev		<syntaxhighlight lang=bash>
			# mount -o bind /dev /target/dev
	# mount -o bind /sys /target/sys		# mount -o bind /sys /target/sys
	# mount -o bind /proc /target/proc		# mount -o bind /proc /target/proc
	# chroot /target		# chroot /target
	# sudo apt-get -y install lvm2 nfs-common</~~pre~~>		# sudo apt-get -y install lvm2 nfs-common
			</syntaxhighlight>

	=== /etc/fstab modifications ===		=== /etc/fstab modifications ===
	<~~pre~~>UUID="6239bc41-8816-47b6-b7d5-2be592f8b69b" / ext4 noatime,discard,errors=remount-ro 0 1		<syntaxhighlight lang=bash>
			UUID="6239bc41-8816-47b6-b7d5-2be592f8b69b" / ext4 noatime,discard,errors=remount-ro 0 1

	# Keep excessive writes in /tmp, and I use a remote syslog server		# Keep excessive writes in /tmp, and I use a remote syslog server
Line 64:		Line 75:
	# Mount network raid array and lets keep apt cache over there via bind mount		# Mount network raid array and lets keep apt cache over there via bind mount
	192.168.1.20:/mnt/raid5 /mnt/raid5 nfs defaults 0 0		192.168.1.20:/mnt/raid5 /mnt/raid5 nfs defaults 0 0
	/mnt/raid5/drew/drew-desktop/archives/ /var/cache/apt/archives/ nfs bind 0 0</~~pre~~>		/mnt/raid5/drew/drew-desktop/archives/ /var/cache/apt/archives/ nfs bind 0 0
			</syntaxhighlight>

	=== /etc/rc.local additions ===		=== /etc/rc.local additions ===
	<~~pre~~>echo deadline >/sys/block/sdg/queue/scheduler		<syntaxhighlight lang=bash>
			echo deadline >/sys/block/sdg/queue/scheduler
	echo deadline >/sys/block/sdh/queue/scheduler		echo deadline >/sys/block/sdh/queue/scheduler
	find /sys/devices -name nr_requests -exec sh -c 'echo 4096 > {}' \;</~~pre~~>		find /sys/devices -name nr_requests -exec sh -c 'echo 4096 > {}' \;
			</syntaxhighlight>

	=== /etc/sysctl.conf additions for swap===		=== /etc/sysctl.conf additions for swap===
	<~~pre~~>vm.swappiness to 1</~~pre~~>		<syntaxhighlight lang=bash>
			vm.swappiness to 1
			</syntaxhighlight>

	=== Update grub2 ===		=== Update grub2 ===
	* Note may require rebuild of initial ram disk -		* Note may require rebuild of initial ram disk -
	<~~pre~~># mv /boot/initrd.img-3.2.0-20-generic initrd.img-3.2.0-20-generic.old		<syntaxhighlight lang=bash>
			# mv /boot/initrd.img-3.2.0-20-generic initrd.img-3.2.0-20-generic.old
	# mkinitramfs -o /boot/initrd.img-3.2.0-20-generic		# mkinitramfs -o /boot/initrd.img-3.2.0-20-generic
	# update-grub		# update-grub
	# grub-install /dev/sda		# grub-install /dev/sda
	# grub-install /dev/sdb</~~pre~~>		# grub-install /dev/sdb
			</syntaxhighlight>

	== First boot into installed OS ==		== First boot into installed OS ==

Drew at 08:26, 8 April 2012

2012-04-08T08:26:35Z

← Older revision		Revision as of 02:26, 8 April 2012
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	# grub-install /dev/sdb</pre>		# grub-install /dev/sdb</pre>

	== ~~Reboot from Installer~~ ==		== First boot into installed OS ==
	Once in OS lets stop a few things from wearing out the SSD's.		Once in OS lets stop a few things from wearing out the SSD's.

Drew at 08:25, 8 April 2012

2012-04-08T08:25:20Z

← Older revision		Revision as of 02:25, 8 April 2012
Line 1:		Line 1:
	Ubuntu RAID0 SSD no root w/o boot partition		Ubuntu RAID0 SSD no root w/o boot partition

	== ~~During~~ install ==		== Start install media ==
	=== Jump over to another tty ===		=== Jump over to another tty ===
	<pre># apt-get -y install lvm2</pre>		<pre># apt-get -y install lvm2</pre>
Line 43:		Line 43:
	# tune2fs -c 0 /dev/vgssd/lvssd</pre>		# tune2fs -c 0 /dev/vgssd/lvssd</pre>

	== ~~Post Install Before~~ Reboot ==		=== Back to installer ===
			* When partitioner comes up, use the already created /dev/vgssd/lvssd as / **do not format, ruins the purpose of removing the journal and adding stride/stripe-width for alignment purposes.

			== After install is finished, but before Reboot ==
	=== Add bits for lvm and nfs on next boot ===		=== Add bits for lvm and nfs on next boot ===
			* Jump back to a tty
	<pre># mount -o bind /dev /target/dev		<pre># mount -o bind /dev /target/dev
	# mount -o bind /sys /target/sys		# mount -o bind /sys /target/sys

Drew at 08:20, 8 April 2012

2012-04-08T08:20:43Z

← Older revision		Revision as of 02:20, 8 April 2012
Line 3:		Line 3:
	== During install ==		== During install ==
	=== Jump over to another tty ===		=== Jump over to another tty ===
	<pre># apt-get install lvm2</pre>		<pre># apt-get -y install lvm2</pre>

	=== Make sure partition starts on 2048 ===		=== Make sure partition starts on 2048 ===
	<pre># fdisk /dev/sda		<pre># fdisk -l
	/dev/sda1 2048 ~~175836159~~ ~~87668224~~ 8e Linux LVM</pre>
			Disk /dev/sda: 32.0 GB, 32017047552 bytes
			132 heads, 63 sectors/track, 7519 cylinders, total 62533296 sectors
			Units = sectors of 1 * 512 = 512 bytes
			Sector size (logical/physical): 512 bytes / 512 bytes
			I/O size (minimum/optimal): 512 bytes / 512 bytes
			Disk identifier: 0x000a5046

			Device Boot Start End Blocks Id System
			/dev/sda1 2048 62533295 31265624 8e Linux LVM

			Disk /dev/sdb: 32.0 GB, 32017047552 bytes
			132 heads, 63 sectors/track, 7519 cylinders, total 62533296 sectors
			Units = sectors of 1 * 512 = 512 bytes
			Sector size (logical/physical): 512 bytes / 512 bytes
			I/O size (minimum/optimal): 512 bytes / 512 bytes
			Disk identifier: 0xd67db81c

			Device Boot Start End Blocks Id System
			/dev/sdb1 2048 62533295 31265624 8e Linux LVM
			</pre>

	=== Create PV's with aligned metadata ===		=== Create PV's with aligned metadata ===
Line 29:		Line 49:
	# mount -o bind /proc /target/proc		# mount -o bind /proc /target/proc
	# chroot /target		# chroot /target
	# sudo apt-get install lvm2 nfs-common</pre>		# sudo apt-get -y install lvm2 nfs-common</pre>

	=== /etc/fstab modifications ===		=== /etc/fstab modifications ===

Drew at 08:17, 8 April 2012

2012-04-08T08:17:33Z

← Older revision		Revision as of 02:17, 8 April 2012
Line 29:		Line 29:
	# mount -o bind /proc /target/proc		# mount -o bind /proc /target/proc
	# chroot /target		# chroot /target
	# sudo apt-get install lvm2 nfs-common		# sudo apt-get install lvm2 nfs-common</pre>

	=== /etc/fstab modifications ===		=== /etc/fstab modifications ===
Line 58:		Line 58:
	# grub-install /dev/sdb</pre>		# grub-install /dev/sdb</pre>

	== Move Firefox cache off ssd ==		== Reboot from Installer ==
			Once in OS lets stop a few things from wearing out the SSD's.

			=== Move Firefox cache off ssd ===
	* firefox-> about:config -> new string -> browser.cache.disk.parent_directory to /tmp/drewff		* firefox-> about:config -> new string -> browser.cache.disk.parent_directory to /tmp/drewff

Drew at 08:14, 8 April 2012

2012-04-08T08:14:22Z

← Older revision		Revision as of 02:14, 8 April 2012
Line 9:		Line 9:
	/dev/sda1 2048 175836159 87668224 8e Linux LVM</pre>		/dev/sda1 2048 175836159 87668224 8e Linux LVM</pre>

	=== Create PV's ~~LVM striping~~ ===		=== Create PV's with aligned metadata ===
	<pre># pvcreate --metadatasize 250k /dev/sda1		<pre># pvcreate --metadatasize 250k /dev/sda1
	# pvcreate --metadatasize 250k /dev/sdb1</pre>		# pvcreate --metadatasize 250k /dev/sdb1</pre>

Drew: Created page with "Ubuntu RAID0 SSD no root w/o boot partition == During install == === Jump over to another tty ===

# apt-get install lvm2

=== Make sure partition starts on 2048 ==..."

2012-04-08T08:13:15Z

Created page with "Ubuntu RAID0 SSD no root w/o boot partition == During install == === Jump over to another tty === <pre># apt-get install lvm2</pre> === Make sure partition starts on 2048 ==..."

New page

Ubuntu RAID0 SSD no root w/o boot partition

== During install ==
=== Jump over to another tty ===
<pre># apt-get install lvm2</pre>

=== Make sure partition starts on 2048 ===
<pre># fdisk /dev/sda
/dev/sda1 2048 175836159 87668224 8e Linux LVM</pre>

=== Create PV's LVM striping ===
<pre># pvcreate --metadatasize 250k /dev/sda1
# pvcreate --metadatasize 250k /dev/sdb1</pre>

=== Create VG and LV ===
<pre># vgcreate vgssd /dev/sda1 /dev/sdb1
# vgdisplay vgssd | grep Total
Total PE 15266
# lvcreate -i2 -I128 -n lvssd vgssd --extents 15266</pre>

=== Create file system ===
<pre># mkfs.ext4 -v -O ^has_journal -m 0.1 -E stride=32,stripe-width=64 /dev/vgssd/lvssd
# tune2fs -c 0 /dev/vgssd/lvssd</pre>

== Post Install Before Reboot ==
=== Add bits for lvm and nfs on next boot ===
<pre># mount -o bind /dev /target/dev
# mount -o bind /sys /target/sys
# mount -o bind /proc /target/proc
# chroot /target
# sudo apt-get install lvm2 nfs-common

=== /etc/fstab modifications ===
<pre>UUID="6239bc41-8816-47b6-b7d5-2be592f8b69b" / ext4 noatime,discard,errors=remount-ro 0 1

# Keep excessive writes in /tmp, and I use a remote syslog server
none /tmp tmpfs size=300M 0 0
none /var/log tmpfs defaults 0 0

# Mount network raid array and lets keep apt cache over there via bind mount
192.168.1.20:/mnt/raid5 /mnt/raid5 nfs defaults 0 0
/mnt/raid5/drew/drew-desktop/archives/ /var/cache/apt/archives/ nfs bind 0 0</pre>

=== /etc/rc.local additions ===
<pre>echo deadline >/sys/block/sdg/queue/scheduler
echo deadline >/sys/block/sdh/queue/scheduler
find /sys/devices -name nr_requests -exec sh -c 'echo 4096 > {}' \;</pre>

=== /etc/sysctl.conf additions for swap===
<pre>vm.swappiness to 1</pre>

=== Update grub2 ===
* Note may require rebuild of initial ram disk -
<pre># mv /boot/initrd.img-3.2.0-20-generic initrd.img-3.2.0-20-generic.old
# mkinitramfs -o /boot/initrd.img-3.2.0-20-generic
# update-grub
# grub-install /dev/sda
# grub-install /dev/sdb</pre>

== Move Firefox cache off ssd ==
* firefox-> about:config -> new string -> browser.cache.disk.parent_directory to /tmp/drewff

== Sources ==
*https://sites.google.com/site/lightrush/random-1/checkiftrimonext4isenabledandworking
*http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/newmds-ssdtuning.html
*http://www.ocztechnologyforum.com/forum/showthread.php?82648-software-RAID-LVM-TRIM-support-on-Linuxking
*http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/newmds-ssdtuning.html
*https://wiki.archlinux.org/index.php/Solid_State_Drives#Mount_Flags