[kwlug-disc] Using mSata drives
L.D. Paniak
ldpaniak at fourpisolutions.com
Tue Jan 14 16:05:46 EST 2014
Agree completely with Kahlid on this. I run a number a machines with no
swap at all or with zram for swap.
Also:
swapon -s
may be helpful here to see what current swap allocations are.
On 01/14/2014 03:54 PM, Khalid Baheyeldin wrote:
> First, why do you want swap to be used at all? If it is used, it means
> RAM is not enough, and you get really bad performance on spindle
> disks, less so on SSDs.
>
> Second, if you are using swap a lot, then it would shorten the
> lifespan of your SSD.
>
> Third, yes, please try parted as the message says. To do this, just type:
>
> sudo parted
>
> Then enter:
> print devices
> You will see all the drives that parted knows about.
>
>
>
> On Tue, Jan 14, 2014 at 2:53 PM, CrankyOldBugger
> <crankyoldbugger at gmail.com <mailto:crankyoldbugger at gmail.com>> wrote:
>
> Here's a question for the pros here...
>
> My Lenovo laptop came with a 1TB HDD, and a 16gig sSata drive. It
> originally shipped with Windows 8 but I eventually wiped the whole
> 1TB and installed Ubuntu 13.10 on it. Runs great.
>
> One thing I noticed is that the 16gig mSata is not being used. I
> would like to use it a my /swap partition. As it happens, there
> is no swap partition on the system.
>
> jeff at Quorra-Ubuntu:~$ sudo fdisk -l
> [sudo] password for jeff:
>
> WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The
> util fdisk doesn't support GPT. Use GNU Parted.
>
>
> Disk /dev/sda: 16.0 GB, 16013942784 <tel:16013942784> bytes
> 255 heads, 63 sectors/track, 1946 cylinders, total 31277232 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: 0x8bb65f34
>
> Device Boot Start End Blocks Id System
> /dev/sda1 1 31277231 15638615+ ee GPT
>
> WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The
> util fdisk doesn't support GPT. Use GNU Parted.
>
>
> Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
> 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168
> sectors
> Units = sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 4096 bytes
> I/O size (minimum/optimal): 4096 bytes / 4096 bytes
> Disk identifier: 0x8bb65f33
>
> Device Boot Start End Blocks Id System
> /dev/sdb1 1 1953525167 976762583+ ee GPT
> Partition 1 does not start on physical sector boundary.
>
>
>
> Here's the df:
>
> jeff at Quorra-Ubuntu:~$ df -h
> Filesystem Size Used Avail Use% Mounted on
> /dev/sdb2 275G 5.2G 256G 2% /
> none 4.0K 0 4.0K 0% /sys/fs/cgroup
> udev 3.9G 4.0K 3.9G 1% /dev
> tmpfs 794M 1.5M 792M 1% /run
> none 5.0M 0 5.0M 0% /run/lock
> none 3.9G 472K 3.9G 1% /run/shm
> none 100M 108K 100M 1% /run/user
> /dev/sdb1 93M 3.3M 90M 4% /boot/efi
> /dev/sdb3 642G 101G 509G 17% /home
> 10.42.1.95:/volume1/video 8.1T 5.4T 2.7T 68%
> /home/jeff/Videos/Athenavids
> 10.42.1.95:/volume1/music 8.1T 5.4T 2.7T 68%
> /home/jeff/Music/Athenamusic
> 10.42.1.95:/volume1/NetBackup 8.1T 5.4T 2.7T 68%
> /mnt/Athenabackups
>
> As you can see, there is no swap partition. I _thought_ I set up
> the mSata as the swap, during the install, but apparently not.
>
> Please note that this machine has UEFI, but SecureBoot is turned
> off. Damn Windows 8....
>
> Does anyone have any ideas on how to set up the mSata as the swap
> partition?
>
> Thanks,
>
> Jeff
>
>
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>
>
> --
> Khalid M. Baheyeldin
> 2bits.com <http://2bits.com>, Inc.
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