Questions tagged [trim]

An SSD command that tells the drive which blocks of memory are no longer in use, allowing it to erase blocks containing deleted data.

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SSD Trim on Archlinux

I heard a lot of different opinions about SSD Trim and normally it's not very important to know how that is handled because you know that is handled unless I use systems where most of the installation ...
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Does AWS support the TRIM command for EBS volumes that are SSD-backed?

I've gone over Amazon's documentation and it seems that the TRIM command is only implemented for some instance types that have internal SSDs (specifically, the C5d, G4, I3, I3en, F1, M5ad, M5d, p3dn....
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Is ssd wear confined to a partition?

Orig. posted on StackExchange, closed as off topic. Suppose I have a SSD with a heavily-used 2GB swap partition, trimmed daily. Will the wear be confined to 2GB, or spread out over the entire ...
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Buffer error during multiple trim (audio) ffmpeg

Am trying to trim and concatenate multiple sections of an audio file. After a number of searches, this seemed to work. ffmpeg -i dd.3gpp -filter_complex "[0]atrim=start=00:00:00.060:end=00:00:46.580[...
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Is WesternDigital Dashboard needed to trim a SSD?

Based on this question Why do we need Intel SSD Toolbox for TRIM? it seems that there is no need to use vendor's application to trim. But although I'm sure Windows 10 trim is not disabled but in WD ...
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how to trim SSD cache drive in zfs 0.8

I have upgraded zfs to kmod-0.8.2-1 for SSD trim and trim function works well for normal zfs SSD drive but does not work for SSD cache drive(sdc in the below log). How can I trim it? Thanks in ...
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Howto determine amount of data written to a disk (especially SSD)?

I'm using KUbuntu 18.04 with a 4.15.0-58-generic kernel and a SanDisk SD8SBAT256G1122 SSD. The system does once a week a fstrim. Apparently counts Linux ATA trim commands as disk writes, I see that ...
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Why does fstrim trim more space than df reports as available

I'm using KUbuntu 18.04 with 4.15.0-58-generic and a SanDisk SD8SBAT256G1122 SSD When doing a sudo fstrim -av I see /opt: 63.1 GiB (67707994112 bytes) trimmed /home: 68 GiB (72999329792 bytes) ...
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Power failure during ssd TRIM: did it break my SSD?

I was doing a TRIM of my new 480gb SSD with Piriform's Defraggler. It was taking some time so I let it run for some hours while AFK, but a storm happened and my home had a power-failure. All my ...
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How to TRIM ssds in RAID 1 on Windows 10 (1903)?

I use 2 Samsung 860 pro 1TB disks in RAID 1 (Intel RST ver. 17.2.4.101) on a Dell Precision 3620 (i7-6700). The write performances have degraded terribly. Blanking and reinstalling everything is a ...
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TRIM support on an USB-attached SSD

I have an SSD (Samsung 860 EVO) attached via an USB-SATA adapter (I tried both this one and this one) to an ARM computer (Odroid N2) running Armbian (Linux 4.9.180). I partitionned it with LVM (...
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ZFS - HDD performance strongly varies in 3-way-mirror among vendors

Prerequisite We have a FreeNAS System with a Pool consiting of 5x"3-way-mirror". The disks per mirror are from different vendors but with the same "on-paper" performace-characteristics. Pool-Layout:...
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What does TRIM on an HDD mean?

I was examining a new hard drive when I noticed something peculiar: It's a 1 TB HDD from Seagate, and CrystalDiskInfo shows that it supports TRIM! AFAIK, TRIM is some SSD feature that allows the ...
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How to TRIM a pre Windows 2008 server with boot CD?

I need to TRIM some NTFS disks where the OS itself is not capable. The disks are served by a ceph cluster to KVM, where Server 2008 is running. Why? This server is going out of business and I will ...
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Using an external SSD without TRIM, mainly for read operations

For audio production involving DAWs and orchestral sample libraries, it is recommended that one use a dedicated SSD to store the sample libraries (I don't understand all the details of why this is ...
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Do I need to enable TRIM in all OS if multibooting?

I multiboot. Does one OS issuing TRIM to my SSD cover all partitions or not? I have a MacBook Pro (Core2Duo version 2.1 - late 2007) with the HDD replaced with a SSD. I am multi-booting it with ...
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SSD overprovisioning and encrypted LVM

I have a SSD with an encrypted (cryptsetup/luks) LVM partition. Since I'm not yet into that ssd stuff I offhandedly left approx. 10% unpartitioned for overprovisioning. Just because I was told that ...
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Samsung 860 pro / evo - do they report deterministic trim?

Regardless of the kind - DRAT or RZAT. While all the modern ssds should behave in RZAT fashion, quite a few of them don't bother reporting such feature. And some controllers (in my case - old LSI2308 ...
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Are there UASP flash drives with TRIM/UNMAP support? [closed]

It seems that most of the high-end external SSD enclosures and external SSDs support UASP and TRIM/UNMAP. Wikipedia does mention thumb drives but provides no further details: USB Attached SCSI (...
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fstrim not remembering trmmed blocks after reboot

I use LUKS + LVM full disk encryption (/boot included). However, after every reboot, the system will trim all by free space, not remembering which blocks were trimmed. I'm afraid this will wear out ...
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fstrim trimming all the free space after reboot

I just upgraded to a SSD. Performance has been great. However, after every reboot, when I do a fstrim to the partitions, it will trim all the free space. And as I understand, trimming writes to all ...
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How can SSD's perform well when encrypted, or without TRIM?

As I understand SSD's, they internally manage the numbered "hard drive" sectors expected by an operating system into interior pages, which are grouped into blocks. The SSD firmware is responsible for ...
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Btrfs on SSD, “no space left on device”; catch-22 with `fstrim` and `btrfs balance`; how to recover?

The root filesystem of my Kubuntu (mounted under /) is Btrfs. I don't use -o discard as a mount option. This means I need to run fstrim on demand. In the past I hit this problem: btrfs, no diskspace ...
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If This Is TRIM, DBAN Should Work

I am informed that drive wiping tools do not work reliably on SSDs due to such features as wear leveling. Here, for example, a quote from MakeUseOf: [T]o comply with wear levelling, the SSD must ...
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Would overwriting a file with the same exact content have an negative impact on an SSD lifetime?

We are developing a piece of software that does a lot of file overwrites. For the sake of simplicity/performance, we currently don't compare the old file content with the new content that will be ...
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Remove middle number from multiple files and copy

I have the multiple PDF files in the specific format in a specific folder and for those particular files I need to trim the middle number using bat file and move to the destination folder with the new ...
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How to trim text before specifc character using notepad++

I have a file each line look like "J001.C1086" "JH001.Blend 10-111". I need to remove the leter/number before each . after remove, it look like "C1086" "Blend 10-111" Thanks!!
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Trim EOL to space in UltraEdit?

How do you trim EOL to space in UltraEdit? In Notepad++ it's menu Edit → Blank Operations → EOL to Space. 1 2 3 4 After trim it's 1234.
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Data Recovery on a Repartitioned SSD

Is data recovery possible from an SSD where the partitions were deleted, and new partitions were created, then formatted? The file system is NTFS. I understand data recovery is generally not ...
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How does TRIM work on Windows when a spanned volume is created with both HDD & SSD?

This question is similar to these two: Does Windows 7 support TRIM for Spanned Dynamic Disks? and Will Trim still work if creating a spanned volume of two disks (NOT AS RAID) But they are for an much ...
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Sandisk SSD on XP

I was wondering if this SSD supported garbage collection. I'm planning on moving my Windows XP Pro SP3 (32-bit) installation to an SSD using something like MiniTool Partition Wizard to clone it with ...
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TRIM an SSD after restoring from an image?

I just restored a full disk Windows 7 image to an SSD with dd, and am now running off of it. I'm concerned that the SSD thinks that all of the unused sectors from the image are actually used sectors, ...
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Can I emulate TRIM by writing all zeros?

Before an SSD sector1 was ever written to, it looks like all filled with zeros. So, if I write all zeros to a sector, for the purpose of functionality, it will look just like a free one. Thus the ...
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Auslogics Disk Defrag SSD Support

I am using Auslogics Disk Defrag in my computer to defrag my drives. Recently, I change my main system drive into an SSD. I then enabled the TRIM feature in its SSD support settings. Question is, if ...
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Is SSD TRIM deleting your System Restore points in windows?

I've had system restore enabled on Windows 7 with a SSD with TRIM enabled. It would often have a message saying 'Creating restore point' but I never actually saw any restore points in the restore ...
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SSD TRIM Garbage Collection and affect on MFT Meta Data (security)

Does the way a SSD with trim and garbage collection handle deleted files make any changes to the deleted files MFT meta data entries for tiny files? What affect specifically do SSD's have on tiny ...
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SSD Trim and file slack space

Does Trim work in the background to tell the SSD to delete slack space of files that get smaller or larger or get overwritten by smaller files? Can remnants of say an audio or video file or picture ...
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SAMSUNG 850 EVO 250GB - TRIM, GC - recoverability of files

Can't find this information anywhere - hoping someone will know. What type of trim does this drive have enabled when trim is turned on? Is it DRAT? Does it zero out files once they've been deleted ...
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How to TRIM the whole partition in FreeBSD to save space in VirtualBox

I am running FreeBSD 11 amd64 in VirtualBox 5.1.12. I have enabled TRIM in VirtualBox (nonrotational="true" discard="true"): <StorageControllers> <StorageController name="SCSI" ...
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Security on SSD with Trim - how Trim handles small files and files in the MFT

I can't find any specific answers to this and I've looked all over. This query is about windows 7 and ntfs trimmed SSD using a SATA II port. I've noticed video files that I try to recover on a ...
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Does wear leveling function normally without TRIM?

No matter whether it's about UEFI, phones, or SSDs, Samsung apparently isn't particularly good at implementing standards. Unfortunately, some year ago, I bought a Samsung SSD 840 PRO Series SSD for my ...
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Does VMware Workstation 12.5.1 support TRIM

Does VMware Workstation 12.5.1 support TRIM for a guest OS? If so, what apart from putting: scsi0:0.virtualSSD = 1 in the .vmx file, what configuration is required to get it to work? I am trying ...
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Win 10 does not run scheduled optimisation task

I have win 10 with all latest updates (14393.321) In my drives tab I set SSD optimization to run daily. But this task does not run in 9 days.
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Does scrubbing a ssd drive work to completely remove deleted files in situations where the trim command is not supported?

There are situations where it's not possible to run the trim command, for example some external usb ssd drives don't support it. If you're not concerned with the ssd drive degrading in any way, ...
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Card/USB flash storage: how to trim/discard/reset after heavy usage?

I wonder, if it is possible to 'reset' the controller of an USB drive or a memory card to treat as 'unused' on Linux (Fedora 24)? Background: I have overwritten an USB drive from /dev/urandom. I.e., ...
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SSD encryption the proper way

When encrypting devices it is always recommended to fill it with random data first, or it would become evident that the drive is encrypted and how much encrypted data there is. I've read that on an ...
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Shockingly slow SSD reads on Debian Jessie

I set up a desktop computer after nine months in the attic. I somehow doubt this is related but I don't remember it being this way. It took six minutes or so to boot, another couple minutes for GUI ...
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Linux, SSD, BTRFS and Trim

I'm running a Linux system (based on Gentoo) with a BTRFS file system installed on an SSD (Toshiba Q300 with 480GB net). My /etc/fstab looks like: UUID=14cb9b65-... swap swap defaults,...
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Removing terminal special character `^@`

when I less a file, it looks like this. ^@00002201-271f-43b9-81a7-000b0a31abe5 ^@00004695-2281-44df-b18d-bd68b63fced4 ^@00009273-3a0f-4c2e-b708-805e02147f55 ^@0000a0e6-3889-43f2-9635-63e114c38f29 ^@...
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Does TRIMming too often reduce the lifespan of a SSD?

I read that Linux doesn't issue automatic TRIM commands (the discard mount option), due to performance problems. I've added fstrim -a in my crontab to TRIM once a week. Does issuing fstrim too often ...