Questions tagged [hotswap]

Hot swapping is replacing components without significant interruption to the operation of the system.

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2 answers
291 views

If I hot swap a power supply to a larger wattage, will it damage the server?

I have a Dell Poweredge R720 server with 2x redundant 750 Watt power supplies. If I wanted to upgrade those to 1100 Watts without shutting down the server and go through the process of hot swapping ...
40 votes
5 answers
25k views

In which order do I plug the SATA power and data cables for hotplug?

I’ve found diverging instructions on the ’net about this. To recap: SATA with the 4-pin Molex (white) power plug is not hot-pluggable, but either the wide connector or the separate (15-pin power and ...
1 vote
2 answers
1k views

Remove sata drive while running?

I have a hyperv 2012 r2 server, and the case has two bays where you can open a drawer and slide in a bare SATA drive. Theres a data and power connector at the back of the bay with cables to connect ...
2 votes
3 answers
2k views

Supermicro: New NVMe is not detected properly

We have a Supermicro SuperServer 2029U-TN24R4T with currently 8 U.2 NVMe drives (Samsung PM1725a 1.6 TB) running on CentOS 7 with kernel 5.0.10-1.el7.elrepo.x86_64. After adding a new one (PM1725b 1.6 ...
0 votes
2 answers
185 views

HP PL580 gen7 - HP SAS 1,2TB 10K SAS 6G SFF DP is stuck in case

that's maybe quite a stupid question, but without finding any solution, I have to ask it. I got an old HP PL580 gen7 together with the 2 HP SAS 1.2TB 10K SAS 6G Harddisks(allready mounted in a cage) ...
2 votes
5 answers
3k views

Why is hotswap so much more expensive?

I am currently looking a building a server, and am comparing hardware. In particular I have been looking at hard drives. It seems like hotswap hard drives are significantly more expensive than normal ...
1 vote
1 answer
2k views

VMWare ESX - Hot add RAM does not showing the new value inside Windows Server 2016

I have VMware ESXi, 6.7.0, 17098360 server in my environment. Recently I tried Hot Add RAM with one of my Microsoft Windows Server 2016 VMs. I successfully increased from 16 GB to 24 GB but inside the ...
1 vote
2 answers
1k views

add space to virtual disk on vmware

I have a VMWare Server 3.5 system with 2 VMs. On one powered on vm I changed the disk size from 1TB to 1,5TB. But the vm didn't see any new unallocated space so that I reboot twice the server. But ...
58 votes
12 answers
246k views

How do I make Linux recognize a new SATA /dev/sda drive I hot swapped in without rebooting?

Hot swapping out a failed SATA /dev/sda drive worked fine, but when I went to swap in a new drive, it wasn't recognized: [root@fs-2 ~]# tail -18 /var/log/messages May 5 16:54:35 fs-2 kernel: ata1: ...
0 votes
0 answers
57 views

Fujitsu RX100 S6 hot swap without bios option in Debian 11

I have old Fujitsu RX100 S6 with Debian 11 on it. How to change Debian settings so he will recognize hotswap bays. There is no "hot swap" option in bios.
1 vote
1 answer
1k views

What could prevent hdd hot-swap in linux ahci?

I'm tearing my hair out over this issue. I wanted to add a hotswap bay to my homeserver to easily add and remove HDD such as to easily rotate off-site backups. The mainboard in question is an Asrock ...
2 votes
1 answer
5k views

What is the purpose of /sys/block/sd?/device/rescan?

I need to "rescan" the SATA bus of our Linux server in search of a hotplug device that doesn't show up. I've seen an old question on the topic (How do I make Linux recognize a new SATA /dev/...
3 votes
3 answers
5k views

HDD with HP Proliant ML310e

I recently purchased a HP Proliant ML310e off PCNation.com as it seemed like a great deal. Come to find out, when I go to open up the case and install HDDs, the system is equiped with a hot-plug/hot-...
5 votes
3 answers
14k views

Are all SAS drives hot-swappable?

Can get a 300GB Cheetah 15K SAS 3.5 disk for quite a bit cheaper through another supplier vs. Dell's out-of-warranty depot (for an aging PowerEdge server). Specs are identical, wondering if there's ...
0 votes
2 answers
8k views

Replace faulty harddrive in Proliant DL180 G6

I have a Proliant DL180 G6 server with a Smart Array P410 controller. One of the hard drives lights amber, but the server is still running perfect. It is running RAID5 or 6 (don't remember). Now, can ...
1 vote
1 answer
451 views

Can the Megaraid 2208 mirrored root disks be hot swapped?

I've inherited a Supermicro SMC2208 RAID. The root drive (on which the OS is installed) is two RAID1 mirrored Intel SSDSC2CW240A3 240GB drives ... one of which is reporting as bad. Controller ID: 0 ...
0 votes
3 answers
766 views

I have a RAID 5 array 3 HDD's in the array + 1 dedicated hot spare....Drive failed and the hot spare is rebuilding

Total of 4 HDD's 3 in the array and 1 as the dedicated hot spare HDD#1 Failed and the hot spare automatically began Rebuilding I would like to replace HDD#1 but I am curious about the procedure to get ...
-1 votes
1 answer
140 views

My own NAS with a SR20969-06A hot-swap Bay. How to turn off the alarm [closed]

So I wanted to build my own NAS with a ATI3IONT-I-Deluxe Mobo I have still lying around. I bought this 4-bay hotswap unit, that's meant to go in a server casing (iex the SR209) which has two power ...
10 votes
1 answer
2k views

Hot-swap drive got new name. If I add it back to the `md` array and it gets renamed on reboot, will the array still work?

One of the HDDs in my server's RAID config failed, so I took it out of the array and had the data center hot-swap it. They've done that, but now the new drive is /dev/sdc rather than /dev/sda. I ...
3 votes
2 answers
12k views

Hot swapping under RAID 1

I have a server that supports hot swapping (such as HP ProLiant DL160 G6 with hot swap) (spec) and I configure it for RAID 1 mirroring across 2 disks. Say one of the raid'ed disks then fails. Can I ...
3 votes
3 answers
8k views

How do I power SATA drives in my DELL poweredge 2850?

I have a Dell 2850 which I've been fairly happy with. It runs RAID 5 to 6 Hot-swap SCSI drives, but I'd like to add some cheap storage. So I bought an Intel PCI-X SATA raid card and tried to install ...
0 votes
1 answer
2k views

MegaCli won't rebuild when set to hotspare

I recently inserted a new drive and marked it as Good. When I then set it to be a Hot Spare, it refuses to rebuild. [root]# MegaCli -PDList -aALL| grep Firm Firmware state: Online, Spun Up Firmware ...
8 votes
1 answer
1k views

Rubber rectangle with one adhesive side + server mount

I bought a new 2.5" hard drive that i put into a 1u server. I first screwed it into the hot swappable mount with screws then plugged it in. The hot swappable mount (image attached) came with a little ...
1 vote
0 answers
218 views

Scriptless automount for systemd Linux systems

What is the proper way to do a boot/hot-plug automount for ATA and USB storage devices on Linux systems using systemd without requiring a GUI or a user having to be logged in? It seems that calling ...
1 vote
1 answer
2k views

hot plug sata to ESXi 5 server

Is it possible to hot plug an eSATA drive to an ESXi 5 server? I'm exploring backup solutions and hoping to hot add a datastore, copy my VM's over, then hotunplug.
1 vote
5 answers
684 views

How "swappable" are RAID 1 drives?

My lab is considering setting up a server with an attached RAID device for storing our large imaging datasets. (probably a Mac Mini server with attached Promise SmartStor DAS w/ 4 1TB hard drives) ...
0 votes
1 answer
289 views

JBoss - Hot Deploy EJB with several dependents

We want to deploy a new version of an EJB, the thing is that several EJB's and WAR's depend on that EJB. So we have to restart the server everytime to ensure every EJB/WAR is up and working properly. ...
10 votes
3 answers
1k views

Can I hot-swap a 2-PSU server from 120 to 240 volts?

I'm migrating a server with 2 PSUs from 120 volts to 240 volts, and I'd rather not take it offline. It seems like I should be able to just move the PSUs to the new voltage one at a time, since they ...
0 votes
1 answer
2k views

Western Digital Re | Hot-Swap?

As the title suggests; my question is: Are the Western Digital Re Gold SATA drives for the RAID-systems hot-swap-able? I cannot find this answer anywhere, sorry if it is a stupid question; but ...
0 votes
1 answer
968 views

RAID 6 array rebuild with hotspare

I have an 11-disk (D0 - D10) RAID6 array with a hotspare (D11) - a 12 disk array total. Disk D3 failed earlier today and the hotspare is now being rebuilt (presumably, turning itself into a datacopy ...
1 vote
1 answer
1k views

Inserting new disks into an HP Proliant DL360 G7 while running

The documentation for my HP Proliant DL360 G7 says I can hot-swap phsyical disks in existing RAID sets. It doesn't say anything about inserting new physical disks and creating new logical disks while ...
-1 votes
2 answers
6k views

Configure RAID 1 on ThinkServer TS140

I am setting up a server for a business, and one of the specifications that they have set is a RAID 1 configuration for the two drives in the machine (the OS will be installed on this mirror). One of ...
-1 votes
2 answers
713 views

How to eject sas hdd win server 2012 proliant dl380 g9

We got Proliant DL380 G9, when I try to eject or remove SAS HDD by taking it offline, the Red LED (Do not remove) is still on. I'm not really familiar with Proliant, on other servers I just take the ...
3 votes
1 answer
3k views

Dell PowerEdge T520, PERC H310 RAID 1, can I hot swap a HDD without shutting down the server?

I have a Dell Poweredge T520 running Win Server 2008 Rc2 with a PERC H310 RAID Controller. Two 15000 rpm 600GB hard drives setup in RAID 1. One drive is rapid flashing orange indicating failure. Can I ...
13 votes
2 answers
7k 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 ...
1 vote
0 answers
123 views

Azure - VIP swap breaks outgoing connections?

I have a cloud service, and I see that during VIP swap - outgoing connections from the service outside are closed, while incoming connections are not impacted. I did this experiment to test it: ...
0 votes
3 answers
4k views

Re-establishing the Trust Relationship [closed]

I am on a network where communication is done through static IPs. On a fairly regular basis I need to swap machines, that is to say unplug a machine, lets say: 10.50.5.1 and plug in a new machine in ...
1 vote
1 answer
1k views

PowerEdge 2900. Want to use as a SAS wiping server, and skip Raid configuration for each drive. Possible?

I've got a Dell PowerEdge 2900 with 8 SAS slots in the front. I want to be able to load drives quickly without setting them up in RAID. We have a pile of about 50 SAS drives that need to be wiped. Is ...
2 votes
0 answers
515 views

nexenta and hotswap sas disks. cfgadm not working properly

There is a problem with the hot-swap SAS drives. Initial data: Nexenta 4.0.2 Server-based Supermicro (MB S5520HC, internal RAID controller RMS2LL080/LSI 2008), 12 HDD SAS 300G 10 HDD SATA 1T, 2 SSD ...
2 votes
2 answers
13k views

Hotplug vs. non-hot plug disks

I have more or less hardware question related to hotplug or non-hotplug hdd. I plan to get HP P2000 G3 FC/iSCSI storage system, and I was going to order the disks. One costs 300eur.. So my question 1)...
0 votes
1 answer
3k views

Server disk failure predicted in raid1 array

I have a IBM 3650X M3 with 2 disks in a raid1 array. One of them is in "failure predicted" state. I have two question about this case: Should I trust it and change a working disk? How the system can ...
0 votes
1 answer
2k views

Adding additional hot swap drive to HP ProLiant DL360 in RAID1 config

I have a HP ProLiant DL360p Gen8 server. It has 8 drive bays with only 6 being used in a RAID1 config. Can I add an additional 2 drives to the empty bays hot and the HP Smart Array Controller will ...
11 votes
2 answers
4k views

Hot-remove memory in a Linux virtual machine

Linux supports hot-adding memory when running as a VM guest, in VMware for example. (Sometimes you need to manually inform the guest OS.) Is there a safe way to do the inverse operation — reducing ...
4 votes
2 answers
3k views

Is it Possible to Automatically Resilver a ZFS Array On Hotswap

I'm trying to learn about ZFS for a NAS I'm planning on building. I'm trying to understand if the following scenario would be possible to set up. Disclaimer: I know very little about ZFS, so forgive ...
9 votes
7 answers
24k views

Can I just remove a disk from a live RAID 1 array?

I've read the story about the manager taking out a disk from a RAID 5 array, and then a second one, but I’d just like to try out for myself what happens when I simply disconnect a disk from a live ...
4 votes
1 answer
828 views

How can I have Linux execute a bash script when a specific disk is hotswapped in?

I have a set of hard drives which are rotated for offsite backup. There are several steps that need to be performed when one of the disks is reinserted which I've rolled into a simple bash script. I'...
1 vote
1 answer
2k views

connecting HP gen 5 SAS raid cage to a third party (3ware, LSI) controller?

I have a ML350 G5 that I'm thinking of repurposing to save money. I'm looking to install FreeNAS but it (ZFS) doesn't play nice with the HP e200i card that's part of the motherboard from what I've ...
3 votes
2 answers
14k views

Can I increase my Dell RAID 1 from 250GB to 500GB just by plugging in larger drives?

I have a Dell PowerEdge R300 with a Dell SAS 6/iR Internal Controller RAID PCIe and two 250GB SATA HDDs in RAID1 configuration. One of the HDDs has died so I want to swap it out for another. At the ...
3 votes
3 answers
3k views

RAM hot-add HP Proliant - Esxi

I have to add some RAM to my HP Proliant DL385 g7 and I was wondering if I can hot-add the memory due to some mission critical VMs that I can't move because of lack of hardware. I use ESXi 5.5 as HV. ...
-4 votes
2 answers
330 views

How to reliably and conveniently mirror 2 drives in hotswap hdd racks (likely without RAID1)?

I have the following situation: Need to store 1 original + 1 copy for data sets that are 1-2 TB in size Need to use consumer SATA drives, 1 for original, 1 for copy Need to store 50+ such data sets ...