Talk:Hot swapping

CPU Hot Plugging
Linux supports CPU hot plugging, but the article claims that CPUs are only cold swappable. See https://events.static.linuxfound.org/sites/events/files/lcjpcojp13_fenghua.pdf for explanation of CPU hot plugging. — Preceding unsigned comment added by 155.41.22.94 (talk) 15:25, 14 May 2018 (UTC)

Clarification required
The Blade server article says ''Blade servers are ideal for specific purposes such as web hosting and cluster computing. Individual blades are typically hot-swappable, which doesn't appear to fit with the hot swap versus plug'' distinction (interaction with software) in this article. Also, the article is talking about components of a computer whereas a blade server is a computer component of a cluster of computers.78.146.78.223 (talk) 12:51, 31 October 2008 (UTC)

Hot Swap vs Hot Swapping
Somehow a names needs to be chosen and hot swap and hot swapping need to be combined. Kail Ceannai 21:52, 2005 May 12 (UTC)


 * Hello? Merge anyone? 193.1.100.102 11:35, 18 August 2005 (UTC)


 * Kail, both of your links go to the same article, so, in effect, the two terms are already combined. --John R. Sellers 04:59, 24 August 2006 (UTC)

PS/2
It says PS/2 is not hot-swappable, but this is not true. I can hot-swap my keyboard and mouse on my Linux box. 70.52.147.11 00:14, 22 March 2007 (UTC)


 * Although rare, hotswapping PS/2 mice/keyboards may damage motherboard, most likely by blowing the fuse in-line with the power pin on the PS/2 connector. Having said that, I've also hot-plugged keyboards and mice before with no trouble. Sagsaw 19:16, 14 April 2007 (UTC)

Firewire: Cold or Hot?
In the section where true hotswappable and hotswappable where the OS must be notified by the user are compared, FireWire is used as an example of both types. Does anyone know which side is the correct one to place FireWire? I guess it should be on the "hot" side, as USB, but I'm not sure.
 * Afaict with both USB and firewire nothing bad will happen on a bus level if you just pull it out. However higher level stuff may not be ready if it isn't warned (for example with a hard drive the OS may still have data cached). Plugwash (talk) 02:17, 13 January 2009 (UTC)

IDE hot swap bays?
I was looking for information on how these work: are they reliable, do they slow down the drive? It would be great if someone who knows about this filled in some info on these devices. I know pretty much nothing about it, so I won't even try to mention them.

Damage
There are two aspects here: one is whether the device(s) break, and the other is whether they work. Devices that are not designed to hot swap may permanently break if plugged or unplugged while powered (example: PS/2). Devices that are designed to hot swap generally have hardware and software aspects. The user can assume that plugging and unplugged while powered will not break them. (Example: USB) But whether they will instantly, automatically "just work" all depends on many factors -- YMMV. -69.87.204.161 01:00, 19 March 2007 (UTC)

Component Shutdown and Redundancy
The sentence: "More complex implementations may recommend that the component be shut down, but there is sufficient redundancy in the system such that if a component is removed without being shut down, operation continues."

This seems a bit confusing to me however I want to avoid altering the meaning by changing the sentence structure. Does the following sound OK?

"Whilst more complex implementations may recommend that the component be shut down, there is usually sufficient redundancy to allow operation to continue uninterrupted while the component is taken offline." Sardaukar86 22:38, 13 November 2007 (UTC)


 * I don't think it is quite the point being made. I think the point is that if you have hot standby type configurations then although there may be a proper way to nicely swap over, the fail over mechanism should allow for an abrupt changeover. I'd quite like to see some source examples, as this is an important point. On a SAN, you have hot standby disks and you can go through a management procedure to implement the standby disk, swapping the offline disk without the need to shutdown the SAN. If you take out the broken but active disk without first taking it out of the set, would the system survive? (Answer: I don't know and I wouldn't try it!). Spenny 09:52, 14 November 2007 (UTC)

Removed cleanup tag, added refs tag
I changed some minor parts of the article, I think it no longer deserves the cleanup tag. However, as there are hardly any refs (I added the only one), i included the refimprove tag. Anyone who has some good sources on this field should look into this, the article seems solid otherwise Meertn (talk) 11:16, 25 December 2008 (UTC)

What means hot plugging?
Its not fully answered in the article introduction although hot plugging is redirected to this article --demus wiesbaden (talk) 00:11, 10 March 2009 (UTC)

Hot pluggable SATA/eSATA
I posted a question on hot swapping at Talk:Serial ATA:


 * {| style="border:black solid 1px;font-size:90%" width="90%"


 * Something that's not obvious from this article or the article on hot swapping... maybe someone can comment here, find cites, or update the articles with useful information.

SATA itself by design is hot swappable, and yet there is minimal to no clear answer in these articles as to when and under what conditions a user can actually use that capability. For example:


 * Under which operating systems?
 * Which kinds of drivers, BIOS features, or specialized bridge/interface chips or cards are required?
 * To what extent is effective hot swappability available in mainstream PCs using a SATA hard drive?
 * Does unplugging or connecting a SATA drive to a modern power supply cause transients that may crash or harm the system? if so how does one power an external SATA drive (hot swapped or otherwise)?

A comprehensive answer (either here or added to the article) would be useful, thanks.
 * }

FT2 (Talk 10:13, 24 June 2009 (UTC)

PS/2 mouse
How to make XP recognise a hotplugged PS/2 mouse ? It does not detect it. I also tried the "Scan for new Hardware" option in Device Manager, but no results.

Xerces8 (talk) 09:55, 17 January 2008 (UTC)

Merge
Maybe this should be merged into hot swapping? I've only been able to find three usable references. I also removed part of the lead that was copied from page 20 of LPI Linux Certification in a Nutshell. Feezo (send a signal | watch the sky) 09:55, 5 June 2011 (UTC)


 * Support this article is just a smaller copy of the hot swapping article. CJ Drop me a line! • Contribs 18:15, 9 October 2011 (UTC)

✅. The coldplug article has now been merged into the hot swapping article. Still needs some post-merge cleanup ... --DavidCary (talk) 00:57, 17 April 2014 (UTC)

Sun SPARCstation cradle
Just a detail: The use of the Sun SPARCstation 4/5/20 cradle (picture) may not be correct. To my knowledge from e.g. Solaris 9, hot-plugging of a drive requires (in addition to SCA-2) the SCSI bus to be "quiescent", but this is not possible if the root filesystem uses that bus. So, with only one SCSI bus, hot-plugging is not possible. A HDD with a SPUD bracket makes more sense. --Mopskatze (talk) 00:24, 2 February 2017 (UTC)

Dismounting in USB
A notice should be made that, with USB, while USB drives can be plugged and unplugged without physical problems, it can corrupt the file system. USB mass storage has to be ejected or dismounted before unplugging it. USB Media Transfer Protocol devices however don't become corrupt if unplugging during writes. Please write up properly and include this information in the article. --Error (talk) 21:54, 5 October 2019 (UTC)

Wiki Education assignment: Introduction to Digital Humanities
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