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Questions tagged [ssd]

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

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really low iops on ssd raid (lower than 1000)

I'm having serious performances problems on a server, with really low iops. server : ProLiant DL360p Gen8 with HP Smart Array P420i Controller (firmware v6) with 4x Samsung 840 - 512GB on raid 1+0 here's one samsung 840 details : hpacucli ctrl…
Cactusbone
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Convert RAID from Mechanical Disks to SSD?

Any issues with converting a Mechanical Disk RAID to SSD by replacing the drives one-by-one? I couldn't find anyone online who has done this, so let's make this the place to post about it. If you have successfully converted a RAID from Mechanical…
Ed B.
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How do I convince smartmontools that my SSD is not a hard drive?

I'm running Debian Wheezy, stock smartmontools package (smartctl 5.41). An SSD, Mushkin MKNSSDCR120GB-MX, is reporting usage lifetime information in SMART attribute id 231 (decimal). For hard drives this attribute is Temperature_Celsius, and…
njahnke
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Third-party SSD solutions in ProLiant Gen9 servers

has anyone experience with using consumer SSDs like the Samsung 850 Pro in an HP ProLiant Gen9 server with a Smart Array P440ar controller? Judging by various reports about older versions (Gen6 to Gen8) third-party SSDs seem to work in principal,…
tmo
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ssd performance against hdd performance

I have two server, one with a SSD, one with a HDD. I've been running hdparm to see the differences, but the results for Timing cached reads and Timing are quite equal/HDD is faster: SSD: Timing cached reads: 26080 MB in 2.00 seconds =…
baao
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Would software RAID0'ing SSDs help or hinder maximization of useful CPU work throughput?

My question is in the title... here is some background: [OS is Linux.] [UPDATE: The contents of this RAID0 is redundant (sync'd from SCM). I am not worried about the increased risk of data loss.] [UPDATE 2: Practically, I'm likely splitting hairs…
Cognitive Hazard
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HP DL585 G6 and PCIE SSD

We recently acquired a HP DL 585 G6, fully populated with SAS drives etc, we want to use a PCIe SSD and have brought an Asus RIADR Pcie SSD however the bios fails to recognize this, can anyone suggest things to try?
Kevin Wincott
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Running "find" command generates high load

I run this command on a Debian server with SSD drives configured as RAID 1: ionice -c 3 find . -type f -amin -1440 -mmin +1441 -not -path custom/ -print0 on a path which contains over 1.7M files and dirs. I noticed that each time I run this…
Alex Flo
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task fstrim blocked for more than 120 seconds

I'm experiencing random crashes on my system. I've narrowed the problem to the fstrim program that's launched weekly by cron. In the console, I've got a set of blocked tasks among whigetch I find fstrim. (other blocked tasks are jdb2/dm, rs:main…
Olivier
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Performance of HP SSDs in HP servers

I am trying to find performance data about the official SSDs offered by HP for their servers. I can hardly find any specifications on the HP website or somewhere else on the Web. The device I am interested in would be: HP 100GB 6G SATA Mainstream…
Aaron
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How to properly use the the MegaCli command for a LSI Megaraid Secure erase for an SSD?

I tried the following commands but I keep getting a invalid command error. It seems to properly pick up the correct controller, drive slot, and adapter though. I currently don't have a screenshot of the exact error but it says it can not start the…
Damainman
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Hbase block locality index is always 0

I have a Hbase (v 0.94.19 with Hadoop 1.2.1) setup with one master machine and two region servers. Each region server has 16 GB heap (6.4 GB cache, 4.0 GB memstore) and 1.6 TB (2 X 800 GB) SSD disk space. There is only one table with single…
tilmik
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Combining SSD and HDD in HP dl380p?

I´m planning to buy a dl380p with 25 sff slots with 2 ssd:s raid 1 and 10 hdd:s raid 5, having room for 13 more hdd:s in the future. Is this possible or do I need two raid cards?
Pontus
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Database server (MySQL) on SSD - trim command

I can't seem to find much expert information about using a database servers on SSD with regards to trim. I know I can enable RAID and LVM discard, and use an fstrim / cron job or the discard mount option for ext4 (which one depending on write…
Halfgaar
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Centos 6.5, PXE Boot fails to recognize the SSD device

Goal: Add correct ahci/scsi to my initrd for PXE install of OS. I am using Centos6.5 minimal install ISO. I have a Serial interface only (no VGA), new low cost rangley processor system and need to boot over PXE and install images. At present all…
Rob
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