Computer data storage, often called storage or memory, refers to computer components and recording media that retain digital data. Data storage is one of the core functions and fundamental components of computers.

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Unable to detect lun in RHEL4

Unable to detect newly added lun in RHEL4 running with 2.6.9-103.ELsmp..Tried LIP protocol but that didn't helped echo "1" > /sys/class/fc_host/hostx/issue_lip Any help is appreaciated
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1answer
24 views

How to know if an SDcard is about to fail?

I have an SDcard that is still working fine for about 8 years now. I am using it for an DSLR camera. I am quite paranoid that it will soon stop working while taking photos of an important event. Are ...
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2answers
111 views

Why does my 500GB hard drive have a capacity of exactly 500,107,862,016 bytes?

Why does my 500 GB hard disk show up to have exactly 500 107 862 016 Byte? I'm aware of the GiB vs. GB issue and know that manufacturers of hard drives use 1000 as ...
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1answer
15 views

How much data storage will be lost converting a 4 GB Compact Flash from FAT32 to FAT16?

i would need to know how to calculate the space still available after formatting if had been lost. I will use a device for collecting physiological data that requires FAT16, on the other hand i would ...
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17 views

Password issue. MYBOOK 2TB Ext USB HDD does not accept my password.

I bought a MY BOOK 2TB External USB data drive for my personal home stand alone computer. I use windows 8.0pro, data drive is about 5 years old, does not have any wifi, network capabilities and is not ...
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1answer
28 views

USB 3.0 port transfer speed on HP Laptop not exceeding 40 MBPS

I tested the internal HDD with CrystalDiskMark and was able to get 109 MBPS both on sequential read and write tests. Then, when I tested my 1 TB WD My Passport USB 3.0 External HDD with ...
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0answers
43 views

Is there a way to make a sd card WRITE/READ only - DISABLE ERASING

I'm a noob trying to find a solution to make a sd card write/read only? Like creating files is possible but to erase something you have to format the whole card. In terms of erasing you only can ...
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0answers
9 views

How to get vendorId and productId of storage drive in Windows?

How do I obtain the vendorId and productId of a storage drive(e.g. internal hard drive or external USB hard drive) non-programmatically in Windows, either with a command, or GUI? Note, I'm not ...
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16 views

How to allow a user to have read&write access to his files on a SAN from two servers?

I'm sorry if the following sounds like a naive question, but I know nothing about SAN. We have a SAN that is connected to two servers. Now, I would like to know if it is possible for a user to be ...
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1answer
31 views

Windows 10 system files taking 190GB [duplicate]

I have a Samsung SSD 840 EVO of 250GB as my main drive with Windows 10 Pro N and it shows up as being almost full, although I don't have too much stuff in it, but when I took a look to the storage use ...
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1answer
23 views

Windows Server Storage Pool migrate to Windows 10

I have a PC that is currently running Windows Server 2012 R2 and It has 4 HDD's in a storage pool. I would like to uninstall windows server on that machine and replace it with Windows 10 (there is no ...
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1answer
33 views

Change memory size units in Windows 10

Just as the title implies, how can you change the unit sizes displayed in Windows? Instead of displaying files like this: +--------+---------------+ | Name | Size | ...
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1answer
28 views

Why is my Virtual Machine Backup larger than virtual machine drives

As part of a disaster recovery test, we made a backup of a virtual machine that runs our SQL server. The backup file was >360GB and took a long time to copy over USB 2.0 (don't ask me why our disaster ...
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0answers
13 views

“other users” files clogging hard drive and can't remove [duplicate]

I have installed windows 10 and now for some reason when viewing storage usage a large part of the C drive is taken up by files from "other users". However, I am the only user registered on ...
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1answer
12 views

Are worn-out flash memory blocks not deletable?

My phone became very slow so I thought if formatting the internal flash memory completely and doing a block erase/write test could make my phone faster. However, I've heard that flash memories wear ...
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1answer
42 views

Mapped Drive Storage Size Matches my Windows Drive?

I have a couple of drives mapped to a SharePoint site. When I open Windows 10 Explorer and look at the details of my Windows (C:) drive, it tells be there are "4.77 GB free of 66.7 GB". When I look ...
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1answer
27 views

Storage of Asus ZenPad C 7.0 z170mg 8GB

The device has 8GB storage. But Clean Master and Windows show just 3.53 GB. And sum of spaces (available, apps, pictures, audio, cached data, misc) is approximately 3GB. Where is the rest of the ...
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0answers
20 views

Is it possible to define k, M, G, T prefixes as decimal in Windows?

In Windows, is it possible to display file/storage sizes in decimal k, M, G, T; or, to replace K, M, G, T with Ki, Mi, Gi, Ti? (Incidentally, I personally prefer ×2^10 to Ki.)
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2answers
87 views

How to download files directly on router/modem instead of PC

I have a modem/router (DSL-2750B) with a external hard drive plugged in the USB port. My idea is to download files directly to the external drive instead of my PC. The reason why I would like to do it ...
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0answers
30 views

Intel SSD cache doesn't work

I have a laptop with a small SSD cache. It had worked properly before I did a fresh Windows installation. After installing Windows I installed Rapid Storage Technology software from Intel but it ...
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2answers
49 views

Recommended RAID Mode for Small NAS Array

I am interested in purchasing a NAS array as a home server, and I am looking at currently 4x2TB drives in a 4-bay Netgear ReadyNAS array. I understand that RAID is not a backup and am will be backing ...
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1answer
28 views

SSD memory combination [closed]

I have a question about SSD's. I have read that there are SSD's that use a combination of RAM and flash memory so that RAM can receive a backup from flash memory when a power outage occurs. I don't ...
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0answers
11 views

list out free bricks on glusterfs storage nodes

I'm trying to aggregate storage on different four machines using Glusterfs.Each machine has multiple bricks and I'm going write a program to create multiple replicated volumes from the bricks on ...
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2answers
81 views

How to hide the actual size of a hard drive

Hypothetically I have a 200GB hard drive. But I want it to appear as a 100GB hard drive. How would this be accomplished?
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2answers
24 views

Comparing files in folders in windows

I am in need of a solution that allows me to compare a sum of of files within two different directories. I was performing a half terabyte copy to Onedrive for business from a NAS device when some ...
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7answers
7k views

How can Windows 10 function on as little as 32 GB of disk space?

There are a number of sub $200 Windows 10 laptops with only a 32 GB SSD hard drive, like Lenovo 100s, HP Stream 13, etc... Given that the Windows directory itself is over 32GB on my regular laptop, ...
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1answer
294 views

Will FreeNAS/ZFS let me manage my storage this way

I'm considering FreeNAS; and want to confirm that my understanding of what I can/can't do with storage in it is correct beforehand. Initial build out: 1 storage pool with 2 x 6TB drives mirroring ...
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3answers
4k views

Hard drive clicking for 16 times during startup

Sometimes when I boot my laptop the hard drive makes a clicking sound (every time 16 times), Windows does not start and I am stuck on the boot screen (note: F2, F4 or any other key do not respond). ...
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41 views

Unable to format memory card in PC [duplicate]

My memory card is not detected in PC. I tried the following but still could not recover it, Tried the HPUSB format tool it says "Memory card is write protected". Right clicked on my computer -> ...
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25 views

What is the physical location of data returned by ATA IDENTIFY DEVICE command?

I assume that this command is sent to disk and controller obtain required information somehow, according to specification T13/2015-D Revision 1a: Some devices may have to read the media in order ...
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0answers
15 views

How do I recover the space on my hard drive? [duplicate]

I a couple of days ago installed Windows XP SP3 (called "Challenger Edition") from a CD, on top of Windows XP SP2, which I've been using for the last four to five years. First up, I opened the CD ...
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8 views

iscsi storage ( target per lun )

the question is straight forward, i have 2 servers clustered and need to share the same LUN (LUN1). I have mapped the LUN1 to TargetA. The question now is should I a) connect the 2 servers to the ...
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1answer
61 views

Why is the total file and folder sizes in drive C: different from the folder size in Properties?

I have two different reports on the size of C: on Windows Server 2008 R2, by clicking the properties of C:, it shows 86.0 GB for "used space"; by selecting all contents (I have setup to view all ...
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1answer
20 views

How to deal with multiple large executables without having to upgrade a system?

I often end up buying a new laptop every second year, which is a bit of a problem. I run multiple applications that take up a lot of storage. For work, it is software for scientific computing (MATLAB ...
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3answers
94 views

What factors limit hard drive capacity? [closed]

Can anybody explain me what factors limit hard drive capacity? I mean, why don't we have HDD with 1000 terabytes of capacity? Thanks in advance.
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1answer
57 views

When I copy the contents of one drive, the copy takes up less space. Why? [closed]

I am trying to copy the contents of one hard drive to another hard drive. But once the copy is completed, the copy takes up less space than the original files. Hence not all files are being copied. ...
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0answers
38 views

Use two drives independently in NAS (Synology)

I am going to purchase a Synology server for my home. I want to have two NAS Drives plugged in internally. Can I access each drive independently? For instance: On one of the drives I want to store ...
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0answers
28 views

Need to expand TP-Links storage but there is no USB port, can i use a shared network drive?

So I got a TP-Link WR841N V9 and I installed Openwrt Barrier Breaker 14.07. It has very little memory so I want to expand it. I read that I could use ExtRoot with a USB to fix that, the problem is ...
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0answers
57 views

Hard Links in Windows - risk of file-loss?

I am now creating hard links to remove duplicate space usage in backup data. This is within single NTFS partitions. I am afraid of data-loss - losing a file completely if one link reference is ...
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1answer
82 views

How do I swap a drive on my Synology NAS without a RAID setup?

I’ve got a Synology DS213j with a 2TB and 1TB drive. I’m connecting to the volumes on the NAS via a network connection (Ethernet/Wi-Fi). Today I bought a 4TB drive and I want to swap that one with the ...
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0answers
256 views

Incorrect Calculation of storage on OS X El Capitan 10.11

The storage calculation in the “About This Mac” says that I have 330GB remaining but my apps and other things add up to about 300GB. Does anyone know how to fix this?
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147 views

Windows 10 storage pool and hard drive recovery

OS Win 1 I am looking for any suggestions as I have spent nearly 20+ hours working with MS and reading through blogs and creating/deleting storage pools to simulate scenarios. Basically I had ...
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1answer
76 views

New hard drive: checklist before entering your workflow?

1, 2... 4+ TiB of data makes a lot of (here choose the appropriate) work/recording/stress/time-to-eg-rebuild-the-array when put on an drive of unknown health. When getting your hands on a spinning ...
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2answers
109 views

How is it possible that In a 4GB memory card a folder of 24.5GB is created?

I had some problem in my memory card. I don't know how, but sometimes the data in my memory card exceeds the limits of its storage capacity. This is the screenshot of the properties of my memory card ...
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1answer
67 views

Does ZFS make sense as local storage?

I was reading about ZFS and for a moment thought of using it in my computer, but than reading about its memory requirements I thought twice. Does it make sense to use ZFS as local storage or this ...
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1answer
53 views

SSD Block Sizing

I've been looking at logical and physical block sizes for disks... [old disks] logically(4KB) -> physically(8 * 512B) -------Data Cluster [new disks,old OS] logically(4KB) -> physically(4KB(8 * ...
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1answer
67 views

Page Sizes (SSD)

New storage devices like hard disks are being made using the "new" IDMEA advanced format of physical 4KB sectors, but what is the largest page size SSD comes in? Looking around I could only find 4KB ...
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2answers
430 views

Boot Signature - BIOS

I understand that the BIOS is in ROM, and the manufacturer "typically" designs it to point to the first sector of the "active" storage device's first sector or CHS (0,0,1)*physical and CHS ...
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2answers
321 views

Why does sector-number addressing in CHS start at sector 1 and not 0?

Before LBA was introduced, why does CHS start at 0,0,1 and not 0,0,0 ?
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1answer
509 views

CHS to LBA mapping - (Disk Storage)

Before LBA you simply had the physical mapping of a disk, which originally disk access with the BIOS on an old a IBM-PC compatible machine would look something like this the following: Cylinder ...