search for: airflow

Hi, folks, I'm installing a RAID controller card for a large external RAID box in a Dell server. I've got two riser slots available. Here's the question: the controller card has some large chips on one side, and if I put it in riser 1, those chips face downwards in the box, blocking ease of cooling, while if I put it in riser 2, the chips will face up... but be right over a large

On 12/25/2016 09:45 PM, Luigi Rosa wrote: <<>> > The other kind of server is sold both in "tower" and rack form factor; > they are bigger the airflow is forced by bigger fans that can turn to a > lower speed to exchange the heat. > > If the noise is produced by the rack fans, use, as someone else > suggested, variable speed fans regulated by a temperature sensor. > > In essence, you can greatly lower the noise "by design&q...

...ave ever worked with considers trying to re-invent floating point a cardinal sin of numerical analysis. Just don’t do it. You will miss important considerations, and you will pay the price for it later. > > I don't think anyone is planning to use it to write climate models. Or simulate airflow over a 787. Or even invert a near-singular matrix. > > This is for jobs that *could* perfectly well be done with a simple integer with an implied scale factor, if you could easily and reliably predict in advance exactly what scale factor is appropriate for each value. > > This simply...

Hello: I am looking for a recommendation for a PCI-e RAID card for my server. The server has a PCI-e x16 low profile slot so the card has to be at most 6.6 inches long x 2.536 inches high. I would like to use RAID 5 with 3 drives so I have to have those capabilities. It has to be CentOS 5.4 compatible (Of course!). I took a look at the offerings from 3Ware, but their cards are too long. If

After having read this mailing list for a little while, I get the impression that there are at least some people who regularly experience on-disk corruption that ZFS should be able to report and handle. I?ve been running a raidz1 on three 1TB consumer disks for approx. 2 years now (about 90% full), and I scrub the pool every 3-4 weeks and have never had a single error. From the oft-quoted 10^14

Has anyone come across a device that could cancel out the noise from servers, ie. the fan noise? I have a server rack near my office and would like to see if i can decrease the noise level. It would seem to me that the steady drone of the fans could be cancelled out to a large extent.

...d nvidia sata controller thats part of the nforce4 chipset? btw its using the sata_nv driver. Also when I reboot it works fine for a few hours and then begins to act up again. Its not a heat problem, the drives have a working fan directly blowing on the drives, and the case its in has very good airflow. ata1: SATA max UDMA/133 cmd 0x9F0 ctl 0xBF2 bmdma 0xD000 irq 193 ata2: SATA max UDMA/133 cmd 0x970 ctl 0xB72 bmdma 0xD008 irq 193 scsi0 : sata_nv ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata1.00: ATA-7, max UDMA/133, 320173056 sectors: LBA48 ata1.00: ata1: dev 0 multi count 16 ata...

On Jun 18, 2014, at 1:20 PM, Duncan P. N. Exon Smith <dexonsmith at apple.com> wrote: > I'm certainly not suggesting this would be better in general than IEEE 754. > > But I think it's suitable for the sorts of places we currently use > hard-floats. I guess you (and Philip) are saying there are dragons here? Numerical analysis is hard. Every numerics expert I have

...Dnese servers are extremely noisy because they have a lot of small fans turning relatively at high speed. This kind of server cannot be converted to free standing "tower" form factor. The other kind of server is sold both in "tower" and rack form factor; they are bigger the airflow is forced by bigger fans that can turn to a lower speed to exchange the heat. If the noise is produced by the rack fans, use, as someone else suggested, variable speed fans regulated by a temperature sensor. In essence, you can greatly lower the noise "by design", but if you already h...

...to be deployed overseas. One of these servers is to support 30 extensions with transacoding g.729 and the other is to support 10 extensions with transcoding. I don't think there is anything in between in terms of hardware but any and all suggestions are welcome. Remember: Compact, quite, good airflow, powerful, 2 x empty slots one of which is a PCIe and 2xNIC ports. Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20100614/dd46a097/attachment.htm

...I used to run at work...) https://photos.smugmug.com/By-Date/2015/2015-01-31/n-vn7hn/i-QFKg46V/0/X3/i-QFKg46V-X3.jpg (front of one of those cabinets, https://photos.smugmug.com/By-Date/2015/2015-01-31/n-vn7hn/i-cJs8Dkk/1/X3/i-cJs8Dkk-X3.jpg a cabinet like that needs 600 cubic feet/minute or more airflow. now, I'm guessing that H's rack isn't quite this big, or as densely populated, since its not in a dedicated server room, but still, it has a lot more than a couple fans to silence. my rack there has 8 servers, 2 additional disk trays, and about 200 disk drives, also a pair of 700...

I am trying to install Bejeweled 2 on Ubuntu 10.10 and im having problems. I am a novice Linux user with some experience, not so much with wine. I have tried using v 1.2.2 and also 1.3.7. as there was a working test report in the database using the latter. Here is the error I am getting in terminal after running the exe with wine 1.3.7 err:seh:setup_exception_record stack overflow 1336 bytes in

Does anyone know about this device? SESX3Y11Z 32 GB 2.5-Inch SATA Solid State Drive with Marlin Bracket for Sun SPARC Enterprise T5120, T5220, T5140 and T5240 Servers, RoHS-6 Compliant This is from Sun''s catalog for the T5120 server. Would this work well as a separate ZIL device for ZFS? Is there any way I could use this in a T2000 server? The brackets appear to be

Changes at my day job (we have a big merger being finalized), has me in the market for a new laptop. They may require me to only run the approved XP build on the system they provide. I do not know if they will fund another unit for me or not, so I am looking to go cheap. Here is what I am looking for: Runs Centos (duh!) Supports Suspend to memory as well as to disk. Bootable from

All, I understand that ZFS gives you more error correction when using two LUNS from a SAN. But, does it provide you with less features than UFS does on one LUN from a SAN (i.e is it less stable). Thanks, Shawn This message posted from opensolaris.org

...34.1.x86_64 samba-winbind-4.2.3-5.1.x86_64 Here is the header part of our smb.conf file: ____________________________________________ # Global parameters [global] workgroup = ASC netbios name = ASCPC21 server role = active directory domain controller realm = ASC.AIRFLOWSCIENCES.COM #dns recursive queries = yes # although documented in a few places, this stanza is apparently not parsed or implemented allow dns updates = nonsecure dns forwarder = 8.8.8.8 log file = /var/log/samba/samba4.log log level = 2 idma...

Hi -- I'm running a server which is usually stable, but every once in a while it hangs. The server is used as a file store using NFS and to run VMware machines. I don't see anything in /var/log/messages or elsewhere to indicate any problem or offer any clue why the system was hung. Any suggestions where I might look for a clue? -- Michael Eager eager at eagercon.com 1960 Park Blvd.,

I have a zpool which has grown "organically". I had a 60Gb disk, I added a 120, I added a 500, I got a 750 and sliced it and mirrored the other pieces. The 60 and the 120 are internal PATA drives, the 500 and 750 are Maxtor OneTouch USB drives. The original system I created the 60+120+500 pool on was Solaris 10 update 3, patched to use ZFS sometime last fall (November I believe). In

So after toying around with some stuff a few months back I got bogged down and set this project aside for a while. Time to revisit. <BR><BR> Looking around there still is not a good "these cards/motherboards" work list. the HCL is hardly ever updated, and its far more geared towards business use than hobbyist/home use. So bearing all of that in mind I will need the

My current home fileserver (running Open Solaris 111b and ZFS) has an ASUS M2N-SLI DELUXE motherboard. This has 6 SATA connections, which are currently all in use (mirrored pair of 80GB for system zfs pool, two mirrors of 400GB both in my data pool). I''ve got two more hot-swap drive bays. And I''m getting up towards 90% full on the data pool. So, it''s time to expand,