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

learn more… | top users | synonyms

1
vote
0answers
14 views

cassandra data migration from regular drive to SSD on production server

we want migrate our data from regular drives on production server to new SSD drives. how we can do that without taking down the node no longer than 4 hours(hinted hand-off is 4 hours) our data is in ...
-2
votes
1answer
68 views

SSD DD write speed lower than HDD [on hold]

I've come across a strange phenomena with a new dedicated server that's been provisioned. The server has 2x1TB HDDs in software RAID 1 and a separate 120GB SSD that is intended to be used as a ...
0
votes
0answers
5 views

MacBook Pro not recognising 1 (it's own) SSD [migrated]

Ok apoligies first as this isn't really server configs. More of a Hardware funny problem. This MacBook Pro was upgraded with an SSD, few months after came back with the "Question Mark" Folder, done ...
-1
votes
1answer
49 views

SSD Server with trim enabled

I have a Windows Server (but I think this problem may apply to any UNIX server too) running using SSD. I have Kingston UV300 SSD and they allow TRIM. I also checked and my Windows is running with TRIM ...
1
vote
3answers
47 views

What is the performance impact of disabling NCQ?

Our cluster system runs currently under CentOS7 with SSDs and NCQ disabled. What kind of a performance drop is to be expected within an i/o-heavy usage scenario? I'm not excepting a precise answer ...
1
vote
0answers
14 views

Does mdstat showing very different block sizes for identical drives indicate a failing drive?

One of my servers has a RAID1 array composed of two 240GB SSDs. It is managed/controlled via Linux, not via a hardware card. Recently, for no apparent reason, the array needed rebuilding. I rebooted ...
1
vote
1answer
45 views

Group Policies Not Applied At Startup with SSD PC

I have a problem with some new computers containing solid state drives which will not apply group policies at startup. All other PC's apply the GPO's no problem. Manually running gpupdate /force ...
2
votes
1answer
19 views

RAID5 array over-provisioning by creating smaller array?

I did actually read the following thread: How to over-provision an Intel SSD RAID Array via the Dell H700 PERC RAID Controller It did give much information, however not an answer to my question in ...
1
vote
1answer
28 views

Consumer SSD on Server only to host OS, MS office, antivirus, accounting software

I have a IBM (Lenovo) System x3500 M4 Server with 16gb 2x 1TD hdd with 20 Terminals Think Clients for remote access at my office which was installed last year in May, replaceing 15 Desktops for team ...
0
votes
1answer
18 views

How to calculate storage working set for sizing SSD/Flash size for tiered storage?

How would you calculate the size of the working set of storage that would live in a SSD/Flash tier of a tiered/hybrid storage solution? This would be used to gauge the size of the SSD/Flash tier. By ...
-1
votes
3answers
40 views

Can't understand this SSD spec

Why is interface 6 Gb/s when the max sequential read is only 550 MB/s and max. random read is only 380 MB/s? Even if this is doubled to include simultaneous read and write, that is way less than what ...
1
vote
1answer
58 views

Hardware performance penalty for Hyper-V Generation 2 VMs

I have the following configuration: Windows Server 2012 R2 OS installed on baremetal with Hyper-V. OS is installed on RAID1 850 PRO drives. Windows Server 2012 R2 Guest OS Generation 2 VM is located ...
0
votes
0answers
36 views

ZFS tuning for SSD queue depths

When using SSD on ZFS, what is the best configuration for the vfs.zfs.vdev.max_active parameters? As I know the default of this parameters is 1000, I don't have the intention to change this, but these ...
0
votes
0answers
16 views

HP Proliant G6 - Smart Array p410i, RAID 1 Disk upgrade

We currently have 2 500Gb spinning disks in a RAID 1 configuration. Since we are hitting our storage capacity limit, we want to safely replace both disks with 2 larger SSD's. We have a Proliant G6, ...
1
vote
2answers
96 views

Swapping older Samsung Enterprise SSD for Consumer SSD (EVO 850) in Dell PowerEdge R820 server in RAID 5 configuration? [duplicate]

I work for a nonprofit organization that contracts with a local IT outfit. We are currently using three enterprise SSD drives in our Dell PowerEdge R820 rig, set up in a RAID 5 configuration. We have ...
0
votes
0answers
47 views

Raid in SSD issue with Trim

Yesterday i posted a question about Storage Spaces and ReFS about cache turn off (write through mode) and its settled. I thought it will be simple, but it turns out far from simple and ran into ...
-4
votes
2answers
58 views

HP ML350p Gen8 won't boot from PCIe SSD [closed]

I have a HP ML350p Gen8 with a PCIe SSD and I'm trying to boot from it, but it won't do it. I can see the PCIe SSD in the list of hard drives when to choose where to install windows 10 pro, but after ...
0
votes
1answer
27 views

Which bandwith can i expect, when i´m running a SATA SSD on a SAS interface?

So, i know this question had been asked before. I consider to buy a SSD for my Server, because i kinda hate the SAS HDDs in there. I thought: If i connect a SSD, which, in fact, handles way more ...
1
vote
1answer
35 views

Why would it matter if instance storage is SSD or magnetic on on AWS?

I'm reading a book on AWS Administration. SSDs are behave more like instance storage than EBS volumes, in that it is not possible to make a snapshot of an SSD. Data must be loaded on to the ...
0
votes
0answers
224 views

Using Dell PERC H330 RAID controller with not-dell-certified SSDs

we think about replacing our Dell PowerEdge T100 (2009) with a Dell PowerEdge T330 for our small business. Up to 15 clients are using the MSSql Server, some fileshares and printers. The database size ...
2
votes
1answer
89 views

Benefits of moving MySQL to its own SSD on AWS EBS

When using hardware (rather than virtualization), there is a clear benefit in using a 200 GB disk for MySQL and a 200 GB disk for content. But due to the way AWS works, is there actually any potential ...
0
votes
1answer
33 views

Upgrade RAID 10 with 7200RPM SATA

We have a Dell T320 with a S110 software RAID with 7200RPM SATA drives. The RAID level is 10 with four drives. I underestimated the demand on the disk, and it is now a major bottleneck of the system. ...
2
votes
1answer
89 views

Mix HDD and SSD in same RAID 1 array

I have a Dell Poweredge R410 with Perc H200 controller. I would like to upgrade my 15k RPM arrays with SSD. Both disks are SAS 6Gbps. Will it work if I remove 1 of the 2 disks, replace by the SSD, ...
0
votes
0answers
23 views

Centos 6 ssd mtip32xx driver command(s) timed out: tagmap

We have some servers with Centos 6 with "Micron Technology Inc RealSSD P320h" ssd drives. We have noticed in the kernel log Feb 11 09:47:32 hostname kernel: mtip32xx 0000:47:00.0: 1 command(s) timed ...
1
vote
1answer
117 views

HP DL380 G5 supported PCIE SSD/boot from SSD

I currently need a PCIE SSD to my G5's due to SW incompatibility with the P400 raid controller. Is there any PCIE ssd compatibility list? I've seen here that the Asus RAIDR Pcie SSD probably works ...
0
votes
1answer
15 views

What does fast small block random reads and writes do for enterprise SSD?

Since I don't have a background in hardware storages, I've read some articles to learn about the comparison between consumer and enterprise SSDs. I'm confused of what makes enterprise SSDs perform ...
1
vote
1answer
81 views

SSD fstrim on CentOS 6.x with software raid5

I have some CentOS 6.x servers. They have software raid1 and fstrim works well there. On one of the servers, I decided to do software raid5 and ext4. I can mount it with discard and there is no error ...
1
vote
0answers
23 views

Disorganized disks because of different disk technologies - LVM an answer?

I have a 1 TB spinning HD, and a 256 GB SSD. I keep my OS and large projects on the SSD, for speed. The rest is on the spinning HD, because of its size. The problem: This means I have things to ...
1
vote
1answer
60 views

Selecting an SSD to act as boot volume in an HP server

A question I recently asked regarding the use of enterprise 10k vs. 7.2k midline SAS disks led to some suggestions that the use of a mirrored pair of SSDs as a boot volume can make sense because: ...
0
votes
0answers
123 views

XenServer 6.2 VM Performance (SSD, RAID-10, Quad-core)

Greetings everyone :) My configuration is the following: HP C3000 tower enclosure 1st HP Proliant BL460 G1 quad core xeon 2.66GHz 12MB L2 cache, 24GB RAM, BIOS I15 5/2/2011 partnered with HP ...
3
votes
2answers
134 views

Acceptable I/O speeds for 6 x 250GB SSDs in RAID 10

I'm running CentOS 7 (XFS filesystem) on a dell server with a PERC H700 raid controller. Inside this server I have 6 x Samsung 850 Evo 250GB SSDs (yes they are consumer drives however, this is a home ...
-6
votes
1answer
110 views

Are HDD <-> SSD transfer speeds completely bottlenecked by HDD speed? [closed]

Is transferring data from an SSD to HDD and HDD to SSD speed about the same as HDD to HDD speed for both ways?
0
votes
1answer
148 views

Are bcache and/or dm-cache considered stable for production in 2016?

I would like to use linux SSD caching (dm-cache or bcache) with Debian Jessie production servers. (kernel 3.16) My question: Are dm-cache and bcache modules reliables in linux 3.16 ? Do I need to ...
-1
votes
1answer
39 views

ServeRaid M5210 high temperature

I have a serveraid M5210 card on X3650 m5 (raid10) And a M5110e raid card on X3650 m4 Both raid card is high temperature (70-75 C) images: http://i.imgur.com/oa2O7ba.png ...
0
votes
1answer
52 views

Using Samsung 850 PRO on Lenovo System with hardware raid (e.g. x3100 M5 5457EHG) [closed]

Having made quite a market research (price, location, availability, specs) i ended up choosing Lenovo System x3100 M5 combined with two Samsung 850 PRO Series 1TB to be set on a raid 1. Now before i ...
0
votes
0answers
49 views

SSD Raid 10 Slow write speeds

We have three IBM servers running windows 2012, all identical, they have a Raid (10) of SSD's. However one of the boxes seems to only be able to write at a third of the speed of the others. The other ...
-1
votes
1answer
49 views

How best to utilize two SSD disks on VPS webserver [duplicate]

I would like to ask you about your opinions how to utilize two SSD disks on webserver.. I read many articles about raid, disk mounting, lvm, disk cache, etc. but still I am not sure how to decide ...
0
votes
1answer
59 views

Copy centos 6 modify mdadm raid 1 and clone to new mdadm raid 1 ssd

I have: Centos 6.7 grub-install -v grub-install (GNU GRUB 0.97) lsblk two new SSD 128gb Live usb with Parted_Magic_2015.03.06 /boot/grub/device.map # this device map was generated by ...
-2
votes
1answer
233 views

Precision T5810 Workstation and INTEL SSD Series 750

I'm trying to spec out a Precision T5810 Workstation and install a INTEL SSD Series 750 drive in it. According to the top rated review at ...
-1
votes
1answer
245 views

TRIM Support in PERC H310 Mini

I am running Debian 8 on a Dell PowerEdge R420. The OS is installed onto a INTEL SSDSC2BA800G3T SSD running the 5DV1DL03 firmware. The SSD is connected through a PERC - H310 RAID controller (fw ...
0
votes
2answers
44 views

80 pin SCSI Raid Controller to SATA SSD's on IBM e336

I have an Old IBM e336 1U Sever. Currently the only Hard drive in the system is a Ultra160 SCSI drive. This drive is old and making some noises indicating that its life is going to end soon. Though ...
2
votes
1answer
156 views

NVMe speed degradation after kernel upgrade

We are testing the speed of two Intel DC P3600 NVMe drives on a CentOS 7.1 system. They are configured in a software RAID1 using mdadm. After upgrading the kernel from the (very old) 3.10 to the ...
1
vote
2answers
70 views

Does the max-80%-use target suggested for ZFS for performance reasons apply to SSD-backed pools?

The Solaris ZFS Best Practices Guide recommends keeping ZFS pool utilization below 80% for best performance: Keep pool space under 80% utilization to maintain pool performance. Currently, pool ...
2
votes
1answer
67 views

How to disable automatic garbage collection on an SSD?

Solid State Drives (SSD) have a garbage collection functionality which makes space from deleted files available. It is triggered automatically by the drive via a TRIM command sent by the OS Is ...
0
votes
1answer
355 views

How is LSI FastPath different from Software RAID?

This question pertains to SSDs on RAID levels without parity (like RAID 0, 1, 10). The recommended settings for FastPath are to set the Write Policy to Write Through, Read Policy to No Read Ahead and ...
1
vote
1answer
707 views

EBS vs SSD definition

I am confused about the EBS and SSD choice while creating an instance . while choosing instance parameters (Step 2) you will see 2 options in the column Instance Storage (GB) : EBS only or SSD . ...
2
votes
2answers
84 views

Hyper-V Cluster on SAN + SSD Local Storage

I wanted to know if there are any methods that anyone has done with the following: All of my servers on the hyper-v cluster are stored on the SANS. I have a desire to have the speed of SSD on two of ...
-1
votes
1answer
21 views

AHCI - Will be two HDDs (SSDs) two times faster?

Lets take common numbers: SATA HDD - 120Mb/s read, write speed heavily depends on gaps in sequence SATA SSD - 550Mb/s read, 500Mb/s write PCIe SSD - 2500Mb/s read, 1500Mb/s write Lets assume they ...
2
votes
1answer
122 views

Is it really necessary to use fstrim on Samsung SM843T SSDs?

Should we schedule periodical fstrims on Samsung SSD drives? What happens if we don't run such periodical scripts? I am highlighting the model on the Title because I am assuming that the answer is ...
1
vote
0answers
201 views

LSI 9207-8i and Samsung 850 PRO TRIM support

A Dell R610 server with LSI 9207-8i HBA card has 6 Samsung 850 PRO SSDs connected to it. hdparm shows TRIM support: sudo hdparm -I /dev/sdc | grep -i trim * Data Set Management TRIM ...