Editing SATA (section)

=== Hot plug ===
The Serial ATA spec requires SATA devices be capable of [[hot swapping|hot plugging]]; that is, devices that meet the specification are capable of insertion or removal of a device into or from a backplane connector (combined signal and power) that has power on. After insertion, the device initializes and then operates normally. Depending upon the operating system, the host may also initialize, resulting in a [[hot swapping|hot swap]]. The powered host and device do not need to be in an idle state for safe insertion and removal, although unwritten data may be lost when power is removed.

Unlike PATA, both SATA and eSATA support hot plugging by design. However, this feature requires proper support at the host, device (drive), and operating-system levels. In general, SATA devices fulfill the device-side hot-plugging requirements, and most SATA [[host adapter]]s support this function.<ref name=linux-ata>{{cite web |url=http://ata.wiki.kernel.org/index.php/Software_status#Hotplug_support|archive-url=https://web.archive.org/web/20090124023117/http://ata.wiki.kernel.org/index.php/Software_status#Hotplug_support|archive-date=2009-01-24 |title=Software status - ata Wiki |website=ata.wiki.kernel.org |date=2008-08-17 |access-date=2010-01-26}}</ref>

For eSATA, hot plugging is supported in [[Advanced Host Controller Interface|AHCI]] mode only. IDE mode does not support hot plugging.<ref>{{cite web |url=https://www.asrock.com/nettop/Intel/Core%20100HT-BD/ |title=Specification for some motherboard with eSATA connector}}</ref>