Computer hardware is the collection of physical elements that comprise a computer system.

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19
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3answers
2k views

Can “enterprise” drives be safely replaced by near/midline in some situations?

When specifying servers, like (I would assume) many engineers who aren't experts in storage, I'll generally play it safe (and perhaps be a slave to marketing) by standardising on a minimum of 10k SAS ...
2
votes
2answers
374 views

How to Power on Remote System Remotely?

Lot's of time I have received call form Developers/QA to Power on their office machine. And I am trying to do R&D on this, Searched over the internet and trying to use the suggested tool in LAN ...
5
votes
2answers
532 views

HP ProLiant DL365 G5 fan noise

I have an HP Proliant DL365, I know it is an old thing. But it works fine for what we have here. But the last time this thing makes a lot of noise and a few lights glow up: When I search in the ...
3
votes
2answers
445 views

ZFS 100TB hardware setup

We received a quote for the following server setup : Intel Xeon E5-2609V2 2 x WD RE 2TB SATA III 34 x WD RE 4TB SAS II 32 GB memory (ECC) LSI MegaRAID 9271-8i bulk, 8 x SATA III/SAS II internal ...
0
votes
1answer
165 views

How to dump usb stick with corrupt partition table?

Question at the bottom. When I insert the 8GB usb stick I get this in dmesg [168699.879019] usb 1-4: new high-speed USB device number 24 using ehci-pci [168699.994177] usb 1-4: New USB device found, ...
0
votes
0answers
7 views

How to calculate Hardware requirements to send push notifications to GCM [duplicate]

I am gathering hardware requirements for system (up to 100M users) that would be firing Push notifications and nothing more. It would receive a signal to send message and then would select all users ...
3
votes
0answers
41 views

SAS expander or better controller?

In the past, servers I've put together have all had 8 or fewer disks, so I've not had to give the storage controller much thought - a standard controller like the P440ar (my experience is with HP) ...
17
votes
4answers
1k views

Can Running a Server's Redundant PSU on Different Circuits Damage It?

So I've been tasked to document and review the status of the UPSes for my current employer and identify any changes that need to be made. Generally easy stuff, however I came across a few units that ...
-6
votes
1answer
70 views

How fast should a web server be? and why StackExchange uses all that hardware? [closed]

Okay so I have been making my very first website, I am using Apache server on Windows 10 Pro I can see my website is loading very fast, however, when I browse my website like anyone would do, I can ...
0
votes
0answers
89 views

Intel S3200SH sudden system freeze with Caps and Scroll Lock Blinking

I have a server based on Intel S3200SH board with Ubuntu Server 15.04 running on it. It ran 24/7 for a year and had no problems at all, but in a few recent days it started to freeze randomly when ...
3
votes
1answer
69 views

Decreased performance of Mysql after superior hardware upgrade

I am quite new to Percona/database servers and i dont know how to approach the following issue. Couple of days ago i upgraded the hardware of a percona cluster (3 nodes) servers with a much more ...
2
votes
2answers
174 views

Does any SATA drive work in any SATA port?

I was under the assumption (apart from restrictions due to old operating systems not being able to read large drives) that as long as a hard drive was of the same type as what is available for the ...
0
votes
1answer
42 views

Finding out which is the failed drive on Intel SRCASRB RAID Controller

There is very old server with Intel RAID SRCASRB Controller with 4 x WD5003ABYX-0 500GB drives connected to it in RAID5 array. One of those drives has failed and I want to replace it. Since server is ...
0
votes
0answers
19 views

Minimum hardware requirements for ElasticSearch in docker [duplicate]

I am developing a search application using elasticsearch and I would like to keep the development cost as low as possible. What are the minimum requirements for elasticsearch to run properly inside a ...
0
votes
1answer
790 views

S.M.A.R.T. error , 190 Airflow_Temperature_Cel , Is it a risk?

Please, I received this report by S.M.A.R.T Checking /dev/sdb.... Errors: Please note the following marginal Attributes: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED ...
2
votes
1answer
86 views

Side-effects of having different Memory (RAM) in a server? Example 1600 Mhz and 2100 Mhz [closed]

I know that you should always have the same memory clock speed and in best case even the same manufacturer meaning the same RAM Module. But what happens if you use for example the following setup: ...
0
votes
2answers
50 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 ...
0
votes
0answers
19 views

Is my disk gone?

My linux workstation just recently crashed. It now boots into a login screen and from there, if I log in, it logs me back out. Also, the resolution is much lower than it used to be. I think that it ...
0
votes
0answers
104 views

USB Barcode scanners Redirect order RDP on windows 2008r2

I'm trying to get barcode scanners (usb, Motorola LS3578 is my test model) so re-direct over RDP, but i cant seem to get very far. The scanner works ok locally on the client, if i plug it into the ...
0
votes
1answer
372 views

HP DL360 G7 4K native sector disk size compatible?

I have a HP DL360 G7 server with a P410i drive controller which don't accept 4K native sector size disks (Seagate ST2000NX0263). LED on drive bay is red. Is there any controller (Adaptec, LSI, Intel .....
-1
votes
1answer
85 views

I launch stress-ng -d 9 and my server crashes

I'm trying to understand why my server crashes. It reboots itself after some minutes when launching stress-ng -d 9 The last logs I received are these ones: [pid 1547] write(3, "Z\26\260\2273\0Z\...
-5
votes
2answers
94 views

Monitor hardware on servers [closed]

In my company, we deliver hardware installations that all have a dedicated server (Windows Server 2008, 2012). It's usually part of our customers' job to make sure the server stays healthy (by ...
0
votes
1answer
26 views

Is switching from Hyper-v over to VMware using the same hardware possible?

I am a newbie into the world of virtualization. Presently, I have a server with the H/W details given below: Processor: Intel(R) Core(TM) 2 Quad CPU Q8400 @2.66GHz(4 CPUs), ~2.7GHz Memory: 6144 MB ...
2
votes
1answer
80 views

Thought about using my server hardware effectively

I will receive my new server hardware in some days, and of course I am already planning on how to use it the most effective way. My current thoughts are about scaling the web and database server on a ...
1
vote
0answers
29 views

Whats the best server for this application [closed]

I need opinions on a server for a medium sized business. 4U or 2U? Here is the needs for this particular application. Id like to know what brands or setups have been known to be the most reliable. ...
0
votes
2answers
87 views

How can 8 SAS lanes support 1024 disks? [duplicate]

According to the LSI 9207-8e specs then it supports up to 1024 disks of 6Gb/s, which I don't quite understand, when it is only an 8 lane JBOD card. In my case, I have an HP D6000 with 70 disks as ...
0
votes
1answer
64 views

what are correctable errors in DIMM and what causes them? How to avoid them?

I could see some correctable errors in DIMM. What are these correctable errors in DIMM and what causes them? How to avoid them?
-1
votes
1answer
46 views

Mid Range Server Motherboard Recommendation (linux) [closed]

I am looking for a mid price range motherboard for a Linux Server. It should have support for ECC memory. On all other aspects I am pretty open minded! Any suggestions or recommendations?
0
votes
1answer
22 views

Reconfiguring large Hyper-V network for speed with failover

I currently have 10 IBM x3650 M4 Servers. Each consisting of a minimum: - Dual Xeon - 192GB - 384GB - 2TB SSD RAID 10 (8 x 500GB Drives) - 4NIC All hardware is redundant, PSU, CPU, RAM etc. Each PSU ...
12
votes
3answers
2k views

What does “low profile” stand for, connected to hardware?

When it comes to hardware I often read something like "Apple Mac computers, and other lower profile ...." For me it sounds like a better word for low end segment hardware but I am not sure about it. ...
-2
votes
1answer
30 views

Obligations when dealing with EOL IT equipment (UK) [closed]

I have been looking for a simple breakdown of the obligations of a Network Admin / IT Manager (etc) when dealing with the inevitable pile of EOL (End of life) IT equipment that comes out of a multi-...
0
votes
1answer
99 views

Possible to use internal LSI controllers in HP hosts?

Right now I have a HP ProLiant DL360p Gen8 with two SATA disks in the disk bays. These are the OS disks. I choose SATA disks to bypass the internal raid controller, so ZFS could do the raid. I now ...
0
votes
3answers
88 views

Are there any radio activity problems i may face from working in the server room?

I work an 8am-5pm job in a server room partition, separated by closed glass from the actual room where the server racks are mounted, from where the continual buzz sound of running servers, ...
0
votes
1answer
35 views

Installing new memory purchase 1 set of 6x4GB or 2 sets of 3x4GB?

I have a server that is old and has a maximum per stick limitation of 4GB (240pin) per stick of memory. There are 6 slots. (This question is not specific to: 6 sticks or the maximum memory per stick ...
1
vote
1answer
981 views

HP ProLiant ML350 G6 won't power on

I pulled a couple of ML350's out of storage for a training lab, and to my chagrin only one boots. When I plug the good ML350 in, the NIC light flickers green briefly and it powers up normally. When I ...
2
votes
1answer
40 views

Why are some disks and some are LUNs?

Question at the bottom. I would like to use a Sun StorageTek 6100 as JBOD for ZFS, and so I have connected it to OmniOS over FC with a QLC2462 HBA. The disk array doesn't have a controller tray, just ...
-1
votes
1answer
47 views

Removing all hw raid from Sun server

This post is about the same server as this post, where multiple disks were in a LUN, and then ZFS was used to make the ZFS pools. I would like to use the 6140 disk arrays as JBOD's on either Linux or ...
0
votes
1answer
45 views

TP-Link TG-3468 on an IBM x3850 M2

I got a networks card from TP-Link. It is the TG-3468. I wanna place it into my IBM server x3850 M2. It has PCIe x8 slots. The slot is a little bit longer than the lenght of the card, but it fits. ...
0
votes
0answers
112 views

The RAID array shows up as DEGRADED, but all drives are OK

The current RAID controller I am using is an AMCC 3ware 9690SA-8I SAS RAID Controller. I have just received this server unit used, and going into this blind; I have no idea how long it has been this ...
0
votes
5answers
409 views

Can I detect hardware RAID infromation from inside Linux?

When I'm inside of Linux, I can get the following information from lsblk (irrelevant drives removed from output): NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 298G 0 disk sdb 8:...
10
votes
2answers
840 views

How can I tell if the server supports hot-swapping drives?

I recently purchased a used server (the type that fits into a rack, rather than a free-standing machine). One nice feature, is rather than having to open up the cover and unscrew the harddrives, this ...
0
votes
0answers
60 views

The difference in performance of different memory mount in dell poweredge R430

There are 3 servers R430 (S1, S2, S3). All of them have 2 procesors and 8*8GB of ram in slots A1-A4 and B1-B4. There is a need of extending memory. I've read dell recomendations (http://www.dell.com/...
2
votes
1answer
107 views

HP DL380 G7 - Voodoo Technology

I have a HP DL380 G7 which on boot gives the following message: HP Proliant Voodoo Technology: NDA Required - Error: Processor does not support Proliant Voodoo Technology I've searched the web high ...
4
votes
2answers
1k views

How do I stop Dell R730xd fans from going full speed when Broadcom/QLogic NetXtreme 57711 PCI card added?

I have a pair of Broadcom NetXtreme 57711 10GbE cards. I put one in a Dell R710; it boots with the card fine, the OS (CentOS 7) recognizes it, and all seems well. However, when I put the other card ...
0
votes
2answers
147 views

What kind of interface card do I need for a SCSI tape library?

I've recently come into possession of an Arcvault 24, a combination tape libary/LTO4 tape drive unit. It connects via a U320 SCSI link using HD68 wiring. The server that this library will be ...
0
votes
0answers
22 views

HP Compaq 8200 Elite SFF won't boot from USB drive. Solution [duplicate]

Can't get an HP 8200 Elite Small Form Factor to boot from USB. (MP8200 Elite SFF PC) BIOS version: J01 v02.15 ME Firmware version 7.1.3.1053 Tried on two different computers, with same BIOS version ...
1
vote
3answers
694 views

What is recommended size of hard disk for a Server?

I have heard that large hardisk >= 1TB are not recommended on the server because they can cause synching issues if one fails + their chances of failure is greater over a longer period of time as the ...
2
votes
1answer
339 views

I shouldn't use both RDIMMs and LR-DIMMs on the same motherboard, right?

I tried to use on the same motherboard at the same time: Three LR-DIMM memory sticks, Four RDIMM memory sticks. The server refused to start; when I use either three LR-DIMM sticks or four RDIMM ...
0
votes
2answers
148 views

What is the maximum ProLiant DL580 G3 SCSI or SAS drive capacity, and are only HP drives permitted?

I was recently given a free HP ProLiant DL580 G3 configured for SCSI drives from out of a datacenter. I understand that this is an older unit, and reliability may be questionable at best, but in my ...
26
votes
8answers
5k views

Consumer (or prosumer) SSD's vs. fast HDD in a server environment

What are the pro's and con's of consumer SSDs vs. fast 10-15k spinning drives in a server environment? We cannot use enterprise SSDs in our case as they are prohibitively expensive. Here's some notes ...