Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [ssd]

Solid-state drive refers to a data storage device that uses solid-state memory to store its persistent data.

832 questions
3
votes
5 answers

Linus/ext4/nvme crashes during high io

During mvn compilation, I have random crashes. The problem seems related to high IO and in kern.log, I can see things like: kernel: [158430.895045] nvme nvme1: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0x10 kernel: [158430.951331]…
Brimstedt
  • 151
  • 1
  • 12
3
votes
1 answer

Hp ssd p420i iops

i am creating an linux(centos7) nfs ssd datastore for vmwware esxi. i am using an HP dl360e with p420i(1GB cache) and 6 x ssdsc2ba200g3p 200GB ssd 6g drivers(HP part number 730053-B21). Using fio i am seeing that the array caps at 70k iops no…
Nicholas Papadakos
  • 93
  • 3
2
votes
1 answer

MEGARAID RAID 1 SSD WITH HOT SPARE AVAILABLE

I do not know whether this requires immediate action or not. W2012R2 server with two 500GB SSDs plus one identical Hot Global Spare. RAID is Megaraid. Screenshots from the RAID Utility are attached below. This is a business in a small town where we…
RegularExpression
  • 175
  • 1
  • 4
2
votes
3 answers

Slow Single Thread Performance on Dell R620 and Windows Server 2019

I recently purchased some new to me r620 servers for a cluster. Mostly they will be doing heavy database transactions, but generally they will have Hyper-V vms doing a variety of work. It was during the database work that I started realizing that…
Justin M
  • 123
  • 1
  • 6
2
votes
2 answers

Hardware RAID array using PCIe based storage? (M.2 / U.2 / full PCIe slot)

Is there currently a mechanism for constructing a hardware RAID array using storage devices that have a full-size PCIe slot, PCIe M.2, or PCIe U.2 bus interface, such as SSDs? It is extremely unclear to me how this might work, since a normal…
Dale Mahalko
  • 755
  • 1
  • 6
  • 17
2
votes
1 answer

How to recover an SSD (Samsung) after deleting all the namespaces?

I deleted all the namespaces (2 were present) on a samsung drive (SSD). Now the drive is not being recognized by the system. How do I recover the SSD?
Kailash Mallikarjun
  • 21
  • 1
2
votes
1 answer

Windows encrypted software raid

Is it possible to have (preferrably with Windows-on-board tools of Windows Server 2012 R2 and Windows Server 2016) to have a software raid mirror on 2 encrypted disks? (Locally preferred.) From what I know, I have to use an SSD for normal/fast…
Andreas Reiff
  • 201
  • 3
  • 10
2
votes
3 answers

SSD - Tweaks/Recommended Configuration

I've just purchased my first SSD drive (a 32GB MLC from Imation) without doing enough research ahead of time in the spirit of giving the new technology a shot and getting myself up to speed by empirical research rather than reading countless reviews…
Miky Dinescu
  • 294
  • 2
  • 5
  • 12
2
votes
2 answers

Does `diskpart clean` send a TRIM command?

If I have a full SSD and clean it with diskpart clean, will the SSD controller receive a TRIM command (assuming I'm running in AHCI mode)? This would be crucial for performance or even healthiness of the SSD because otherwise it wouldn't know that…
TToni
  • 291
  • 2
  • 10
2
votes
1 answer

HP DL360 Gen9 - Boot from PCIe SSD?

We've been using SATA (ADATA or Transcend 2,5" SSD's), but a much neater solution would be to use a PCIe SSD (M.2 SSD + PCIe adapter). We've tried M.2 WD Green SSD's as wel as M.2 Kingston SSD's. Both to no avail. The interesting fact is, when I use…
Paul
  • 140
  • 1
  • 6
2
votes
2 answers

PERC, Caching with SSDs

We have a few servers with PERC H710s, we're moving to SSDs and I wonder, is caching needed given that we're not using spinning disks? Our general setup is as follows 2 X 2TB SSD in RAID 1 Read Policy: No Read Ahead. Write Policy: Write Through Disk…
DipreSantana
  • 21
  • 1
  • 2
2
votes
1 answer

In my ZFS box, why is my cache devices leaving a bunch of free space?

I have a ZFS system serving many VMs. In it, we installed 12x4TB SAS disks and configured them in a mirror. We added two PCI-E SSDs (Samsung 960s with 512GB each), but they are each consumed to just over 50% rather than caching all the data they…
user1955162
  • 296
  • 3
  • 16
2
votes
0 answers

Linux dm-crypt slowness with fast SSD

I'm experiencing slowness with an encrypted filesystem. Here are the details: # /dev/sdd: TOSHIBA PX05SVQ192B AX02 /dev/sdd # gdisk -l /dev/sdd GPT fdisk (gdisk) version 0.7.1 Partition table scan: MBR: protective BSD: not present …
Patrick LeBoutillier
  • 181
  • 1
  • 3
2
votes
2 answers

Switch SATA disks in DELL PowerEdge R410

I need a 1U rackserver for hosting a website running on Windows Server and MS SQL. I plan to have a SSD drive for the system and SQL database and a large 1-2 TB standard SATA HDD for a lot of datafiles that needs to be served from the website. The…
Karsten Moeller
2
votes
3 answers

Which is the worst-case scenario: dying HDD or SSD?

We all know SSD offer many advantages (such as speed) over HDD drives but which one is safer when it comes to data rescue if, for instance, the drive is failing? From my understandings on SSD drive data is stored on-chip and when chip dies all data…
Luka
  • 375
  • 5
  • 21
1 2 3
…
55 56