a solid-state disk (SSD)

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2
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1answer
40 views

Why does fstrim trim all of the free space on my mdraid mirror after a reboot? [duplicate]

I have a server with 2 SSDs: Model Family: Intel 520 Series SSDs Device Model: INTEL SSDSC2BW240A3F Firmware Version: 400i User Capacity: 240,057,409,536 bytes [240 GB] Sector Size: ...
3
votes
1answer
56 views

Can't enable TRIM on SSD

I can't enable TRIM on my newly-installed SSD. Ubuntu Server 12.04, Linux 3.11.0-15-generic. I turned TRIM on through discard setting in /etc/fstab. Also TRIM doesn't work with fstrim command. Here ...
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0answers
98 views

Possible issues with SSD SATA3 drive

While investigating the issue with my SATA3 SSD drive being recognized as SATA2 (for some reason had to change SATA ports to fix it) I noticed the following messages when I run: $ dmesg | grep ...
0
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1answer
51 views

Fedora doesn't boot after migration to new disk

I bought a new larger SSD and copied all data from the old SSD to the new one. On the SSD I have Ubuntu and Fedora, Ubuntu works normally after migration but Fedora boots into Emergency Mode. I have ...
1
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3answers
52 views

Mount a second ssd drive on centos - How can I figure out which is the unused drive?

I need to mount my secound ssd drive to /home2. I already created the folder /home2 - Now, how can i figure out which is the unused drive ? Is this /dev/sda or sdb ? What is the exactly thing i`ve to ...
0
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1answer
22 views

Two HDD installation

Is there any easy tutorial or guide how can I setup Debian (amd64 v. 7 + xface) on my server, but using this separation ? Separation: SSD (32GB) for system Normal HDD (1TB) for data like /var ...
2
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1answer
55 views

Using LVM with SSD and SATA drives

I saw in this question that it is possible to place both a SSD and a standard SATA hard drive into a single LVM volume group (VG). How does this affect performance? Is there a way to force the OS ...
0
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1answer
45 views

Installing Ubuntu on HDD and Windows on SSD

I am new to Linux. I have a 60GB SSD + 1TB HDD on my laptop. I want to know if I could keep Windows 8 on my SSD and install Ubuntu on HDD. Can GRUB detect both operating systems?
2
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2answers
285 views

How to install Linux Mint on 24GB SSD alongside 1TB HDD

I had a Lenovo laptop with Windows 8 on it but I wanted to switch to Linux Mint. After disabling UEFI secure boot and some other things I managed to get Linux Mint installed on the 24GB SSD. I'm new ...
1
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0answers
39 views

Optimization for an SSD?

I am running Fedora 20 on a Laptop ( Lenovo Ideapad Yoga 2 Pro ) with an SSD. My filesystem is LVM with ext4 as the format option. I am now running Fedora as the only OS on the system with Legacy BIOS ...
4
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3answers
290 views

Hiding encryption key in unpartitioned free space of SSD

Anyone know what can happen if we use the unpartitioned space of an SSD hard drive to hide some data, what would happen? I have read that there are some SSD firmware using these blocks for recycling ...
1
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1answer
34 views

Is it possible to manually manage a Solid State Hybrid Drive?

I'm about to buy a new laptop which has a SSHD. It stands for Solid State Hybrid Drive, which means it has a big, regular HDD with a small, usually 8GB SSD to cache frequently accessed files. Now ...
1
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1answer
44 views

can /boot be on a different drive than grub or lilo?

I just got a vizio CN15-A5 laptop, which has both a 1TB HDD and a 32G SDD. I am going to use the SSD with dm-cache, however, I would to make /boot a partition on the SSD, and the laptop's BIOS doesn't ...
3
votes
1answer
175 views

SSD as a read cache for FREQUENTLY read data

I'm looking for ways to make use of an SSD to speed up my system. In “Linux equivalent to ReadyBoost?” (and the research that triggered for me) I've learned about bcache, dm-cache and EnhanceIO. All ...
2
votes
1answer
549 views

How to check the life left in SSD or the medium's wear level?

We all know that SSDs have a limited predetermined life span. How do I check in Linux what the current health status of an SSD is? Most Google search results would ask you to look up S.M.A.R.T. ...
3
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0answers
31 views

Determine whether TRIM commands are being sent [duplicate]

I've configured multiple SSDs in a RAID-0 array in AHCI mode. I'd like to determine whether TRIM commands are being sent to the disks. Is there a way to monitor these commands in the kernel somewhere? ...
0
votes
1answer
67 views

How to migrate files on Linux from HDD to SSD on a VDS

I upgraded my Dedicated Server and I was having problems finding my SSD. I found out how to MOUNT my SSD. I now have my 100 GB HDD and now 20 GB HDD. [root@server /]# mount /dev/xvdb1 /ssd ...
3
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3answers
142 views

Best way to benchmark different encryption solutions on my system

I want to compare different encryption solutions for encrypting my system, possibly different solutions for different parts of the system such as /usr or /home. In particular I look at dm-crypt ...
4
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2answers
2k views

Benchmark ssd on linux: How to measure the same things as crystaldiskmark does in windows

I want to benchmark a ssd (possibly with encrypted filesystems) and compare it to benchmarks done by crystaldiskmark on windows. So how can I measure approximately the same things as ...
0
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2answers
143 views

Can I prove that an SSD is broken? [duplicate]

Is my SSD broken? I have asked to replace so many SSD I don't feel like asking it again. But if the SSD is indeed broken, just one time server down will cost me $500 or something. So, how do I make ...
0
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1answer
188 views

Is my SSD broken? [duplicate]

/bin/ls: cannot access cache-zch-5666-cache.txt: Input/output error /bin/ls: cannot access cache-zch-4970-cache.txt: Input/output error /bin/ls: cannot access cache-zch-4782-cache.txt: Input/output ...
-1
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1answer
64 views

There are 4 SSDs but df only listed one. Why?

I just replaced SSDs There are 4 hard disk Disk /dev/sda: 240.1 GB, 240057409536 bytes 255 heads, 63 sectors/track, 29185 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size ...
0
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2answers
97 views

ECC on a single block device

I have an SSD that I suspect failing silently now and then. I have run badblocks on it and it is clear that it is not bad sectors but might instead be some race condition in the electronics, in which ...
1
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3answers
2k views

partitioning using 2 hard disks (SSD and non-SSD) in linux [closed]

I have the following free spaces on 2 disks: SSD - 240G (sda) non-SSD - 240G (sdb) I understand that I should use SSD to install packages and non-SSD just for storing data. What's the best ...
1
vote
1answer
120 views

Are these throughput numbers typical for an SSD?

Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sdb 19722.20 170.80 7141.60 27.80 114246.40 788.80 32.09 52.25 7.19 ...
4
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1answer
180 views

fstrim and iostat

I have a new samsung ssd in my new notebook. I tuned up everything to avoid writings in the disk (firefox profiles and /var/log in memory), I'm using a ext4 fs with relatime and I use fstrim once a ...
0
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2answers
202 views

Should I change SSD?

Demsg shows this EXT4-fs error (device sda1): ext4_ext_get_blocks: inode #7743113: (comm flush-8:0) bad extent address iblock: 3503, depth: 1 pblock 0 EXT4-fs (sda1): delayed block allocation failed ...
3
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2answers
383 views

Is it OK to store /var/tmp on a SSD? [duplicate]

I have read that you should not store /tmp on a SSD, because the frequent writes will shorten the lifetime of the SSD. But what about /var/tmp? Is it reasonable for /var/tmp to be stored on a SSD? ...
7
votes
2answers
566 views

Trim with LVM and dm-crypt

I tried to setup TRIM with LVM and dm-crypt on ubuntu 13.04 following this tutorial: http://blog.neutrino.es/2013/howto-properly-activate-trim-for-your-ssd-on-linux-fstrim-lvm-and-dmcrypt/ See the ...
0
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0answers
23 views

Reasons to partition an encrypted ssd [duplicate]

I am just setting up a new system with Lubuntu 13.04. I have an SSD and the whole system will be encrypted with the standard LVM + dm-crypt method (as offered by the lubuntu installer). In the past I ...
2
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2answers
1k views

How to check drive temperature on Linux?

I have used of hdparm -n and smartctl -A but it always seem to be a "per drive" technique as a drive may answer for only one of these tools. So, is there a standard way to get the drive temperature ...
43
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2answers
2k views

What NOT to put on an SSD?

I bought an SSD and I am going to set up my desktop system with a completely fresh Linux installation. SSDs are known to be fast, but they have a disadvantage: The number of writes (per block?) is ...
1
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0answers
186 views

Can't see my ssd drive when booting using grub on a usb pen

I installed debian on my laptop and everything was fine (I may need to mention that I'm using LVM) until I reached the grub point. Since I have a GPT partition he refuses to install properly. I ...
3
votes
6answers
694 views

How can I defragment my SSD on linux?

This page demonstrates that defragmentation is beneficial for SSDs. I suppose this type of defragmentation has to be trim-aware, so as to preserve the life time of the disk. How can I do that on ...
5
votes
1answer
450 views

btrfs and the discard mount option on an ssd

I can't seem to find an answer to this so I thought I would ask here: In /etc/fstab and when using the mount command in ext4 you would add the option discard to activate TRIM on an SSD. Similarly ...
1
vote
3answers
259 views

New Computer keeps crashing on fresh install

I have a brand new HP Envy dv7-7212nr, second one, because I thought there was something wrong with the SSD with the first one. After I install Debian Testing or Mint, I compile the wireless drivers. ...
1
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4answers
71 views

Is there a robust way to cache contents of usb on local hd?

I'd like to switch between working on a laptop with a debian vm and a desktop pc running debian while carrying all my work files in a usb. Is there a robust way to automatically start caching the ...
3
votes
3answers
4k views

Persistent blockdev setra read ahead setting

I've got some SSDs mounted up on /dev/sda1 and /dev/sdb1 on a SLES 11 SP2 server, and I was able to tweak the read ahead setting with blockdev --setra: sudo blockdev --setra 4096 /dev/sda sudo ...
2
votes
1answer
408 views

Best way to encrypt my system on an ssd

I consider to buy an ssd for my laptop (something like Samsung 830 or 840) to make the system more responsive. I want my system (at least my home partition) to be encrypted. However I know about ...
0
votes
1answer
246 views

Moving stuff off of SSD to HDD after installation. Using mount --bind? LiveCD?

I installed Ubuntu 12.10 on my SSD. /dev/sda1. No other partitions. No swap. Then I went about reading how to optimize usage, and have come to the conclusion I want my /home, /var and /tmp mounted on ...
3
votes
2answers
247 views

How to dual boot Linux and Windows from small boot drive?

I am a Linux newbie, and I am trying to dual boot Linux Mint with Windows 7. Right now, Windows 7 boots from a small SSD, which has little extra room on it. Is there a way to set up a dual boot where ...
2
votes
1answer
198 views

Grub loading slowly with SSD

Since yesterday, I added a brand new SSD in my PC, and I am experiencing a very fast boot from grub menu. The problem is before arriving to this menu, I must wait for a long time (~30s in most cases). ...
0
votes
1answer
179 views

Fresh installation of debian and raid10 array with SSD and HDD

I have one 120Gb SDD and four 2Tb HDD at disposal. I would like to install Debian Squeeze on the SSD and create a software RAID10 array with the four HDD. According to your experience, how to ...
17
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3answers
7k views

How to know if a disk is an SSD or an HDD

I want to know whether a disk is a solid-state drive or hard disk. lshw is not installed. I do yum install lshw and it says there is no package named lshw. I do not know which version of ...
3
votes
1answer
235 views

How to mount some folders on a different partition

I recently got an SSD for my computer. Therefore I reinstalled my system and mounted / on /dev/sda1 (which is a partition on the SSD). To protect the SSD, I managed to mount /tmp on the RAMdisk. ...
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1answer
226 views

How do I know if my SSD is SLC or MLC?

I have 3 SSDs on my server. How can I tell if they are SLC or MLC?
0
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1answer
709 views

Low display resolution Ubuntu Gnome remix 12.10

I'm running Ubuntu Gnome remix 12.10 and it can't recognize my display. My HW is: Intel i3 3225 with HD 4000 onboard / is on a OCZ Vertex 4 SSD display is an old IBM Thinkvision with vga connector ...
4
votes
4answers
372 views

If I have an SSD and a hard disk in a system, can the SSD act as cache for the hard disk?

Say I have some partitions; one on a SATA drive and one on an SSD. I want to create a "virtual" hybrid disk. Is this possible?
1
vote
1answer
561 views

Installing Boot and OS on SSD, rest on HDD

Okay so I got an SSD for my notebook and I'm currently setting up my system. On the SSD I'd like to have the main OS (Crunchbang in this case) and maybe some swap whereas on the HDD I want my Home ...
2
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2answers
1k views

Installing Debian on an SSD

Does the Debian installer work out of the box for SSDs? I.e. I heard that you need to align the partitions to 32bit virtual clusters (is it actually true?). Are there any other things I need to take ...