Vacuum Cleaner

On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

Â*There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Â*Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.


--
Cheers, Carlos.

Carlos E.R. wrote:
On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

*There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

*Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.



Most of my failed cases had issues with the builtin power-supply. I
think when a disk gets older it uses more power which can't be delivered
by the builtin powersupply. Adding a supply which could deliver more
current always solved my problem. Although I also replaced the disk
because I knew it would fail sooner or later.

On 26/08/2019 13.46, wimpunk wrote:
Carlos E.R. wrote:
On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

*There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

*Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.



Most of my failed cases had issues with the builtin power-supply. I
think when a disk gets older it uses more power which can't be delivered
by the builtin powersupply. Adding a supply which could deliver more
current always solved my problem. Although I also replaced the disk
because I knew it would fail sooner or later.

No. Always the internal computer supply, connection via SATA cables.


--
Cheers, Carlos.

On 8/25/19 5:35 PM, Carlos E.R. wrote:
On 25/08/2019 23.30, Mayayana wrote:
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Yes, I remember hearing of that kind of setup, but elsewhere.

I've got an old Dell PowerEdge 2900 that has 8 hard drives in RAID (I
use RAID 1). Each drive is mounted in a caddy that can be hot-swapped
from the front. The caddies are just slightly larger than a 3.5" HDD,
and about an inch deeper.

Unfortunately, this machine runs these eight drives only in RAID, so
that precludes software testing by swapping a drive. The operating
system lives on an interior drive (or two) in a more conventional
mounting, cabled to the motherboard's SATA port.

(This is hulking beast of a machine, measuring 9" wide, 19" high, and
29" deep. I have no idea of it's weight- the last time I picked up, I
removed the 8 HDD's and 2 power supplies.)

Personally I change hardware very rarely, so I don't
need any special convenience.

Most of us use VM for those things, I guess...




--
Ken Hart

On 2019-08-25 6:25 p.m., Rene Lamontagne wrote:
On 2019-08-25 6:21 p.m., Rene Lamontagne wrote:
On 2019-08-25 4:35 p.m., Carlos E.R. wrote:
On 25/08/2019 23.30, Mayayana wrote:
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

Â*Â* There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Yes, I remember hearing of that kind of setup, but elsewhere.

Â*Â* Personally I change hardware very rarely, so I don't
need any special convenience.

Most of us use VM for those things, I guess...



M Coolermaster CM690 II case has what they called an X Bay built into
the top It is a slanted ramp with SSD connectors at the lower end It
is a hot Swap bay and you can plug or unplug SSDs at any time.
I have about 5 12 GB samsung and Kingston SSDs on which I have installed

Windows 10 insider
Windows 7
Linux Mint
MX Linux
ZenialPup 7.5

So I just slide in whatever OS I want and boot into that drive.
Best thing since sliced bread, They still make that case 10 years
later but sadly have not retained that feature.

Rene


Sorry, 120 GB SSDs, Pretty hard to find 12 GB ones.Â* :-)

Rene

Spoke wrong, on looking at that case again apparently they brought the X
bay feature Back, they renamed it CM690 II advanced or CM692 USB3
depending where you look They also have a White version.

Rene

"Carlos E.R." wrote in message
...
On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.


I don't recall having any problems. I'm sure I would remember if I had.

--
Regards
wasbit

"wimpunk" wrote in message
...
Carlos E.R. wrote:
On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.



Most of my failed cases had issues with the builtin power-supply. I
think when a disk gets older it uses more power which can't be delivered
by the builtin powersupply. Adding a supply which could deliver more
current always solved my problem. Although I also replaced the disk
because I knew it would fail sooner or later.

Cases are not caddies.
The frame has a PCB with an IDE & Molex port on the outside for connection
to the PC.
On the inside is a male IDE connector but no Molex. There are also wires
which go to two LEDs on the front (power & activity presumably).
The removable tray has a female IDE mounted on a PCB which goes to a short
ribbon cable & molex connector for the HDD.
Looks like the power is supplied through the PCB IDE ports rather than the
wiring being Molex all the way through.
The tray also has a small cooling fan at the front.

--
Regards
wasbit

"Carlos E.R." wrote in message
...
On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.


Probably the PCBs on which the IDE ports are mounted.
On checking there are Molex connectors at both ends but not in the middle so
it looks like the power is routed via the IDE connectors.

--
Regards
wasbit

On 27/08/2019 11.02, wasbit wrote:
"Carlos E.R." wrote in message
...
On 26/08/2019 11.21, wasbit wrote:
"Mayayana" wrote in message
...
"Carlos E.R." wrote

| And the rest is done with trays that face you.
|
| Cables at the back... :-P
|

Â*There used to be an Englishman in the programming
groups who liked to use caddies. I don't know quite how
they worked, but somehow he installed a chassis in
a drive bay and then had 3 1/2" enclosures for the
hard disks, that fit into the chassis. So when he wanted
to test software, rather than use a VM, he just pulled
out one hard disk and slid in another, with a different
OS on each disk. I picture it as something like an 8-track
player but I've never actually seen such hardware.

Â*Personally I change hardware very rarely, so I don't
need any special convenience.


Yes, I also used caddies for a time. I still have an unused one in its
box which says MobileRack since 1994 so that might be the brand name.
They weren't hot swappable under XP.
Used with 3.5" IDE drives at the time but later 2.5" drives plus a SATA
to IDE adapter made them even more convenient & lighter.
The case also had a lock where the key was a tube with a protruding pin.
Enough to stop casual removal.

Those. I have two, both failed soon. Maybe the disk fault, but that same
disk directly connected with cables outside of the computer, works.


I don't recall having any problems. I'm sure I would remember if I had.


Not the same brand/model. SATA here. Current incumbent is Sharkoon.

--
Cheers, Carlos.

In article , Ken Hart
wrote:


I've got an old Dell PowerEdge 2900 that has 8 hard drives in RAID (I
use RAID 1). Each drive is mounted in a caddy that can be hot-swapped
from the front. The caddies are just slightly larger than a 3.5" HDD,
and about an inch deeper.

8 drives in a raid 1 configuration is an incredibly poor use of disk
space.

are you confusing that with a different raid level?

On 8/27/19 6:55 PM, nospam wrote:
In article , Ken Hart
wrote:


I've got an old Dell PowerEdge 2900 that has 8 hard drives in RAID (I
use RAID 1). Each drive is mounted in a caddy that can be hot-swapped
from the front. The caddies are just slightly larger than a 3.5" HDD,
and about an inch deeper.

8 drives in a raid 1 configuration is an incredibly poor use of disk
space.

are you confusing that with a different raid level?


Since I set up the machine, no I am not confused. The drives are paired
to create four virtual drives in RAID 1.


--
Ken Hart

In article , Ken Hart
wrote:

I've got an old Dell PowerEdge 2900 that has 8 hard drives in RAID (I
use RAID 1). Each drive is mounted in a caddy that can be hot-swapped
from the front. The caddies are just slightly larger than a 3.5" HDD,
and about an inch deeper.

8 drives in a raid 1 configuration is an incredibly poor use of disk
space.

are you confusing that with a different raid level?


Since I set up the machine, no I am not confused. The drives are paired
to create four virtual drives in RAID 1.

that's not 8 drives in a raid 1 configuration, that's 4 pairs of
drives, each of which is raid 1.

On 8/28/19 9:35 AM, nospam wrote:
In article , Ken Hart
wrote:

I've got an old Dell PowerEdge 2900 that has 8 hard drives in RAID (I
use RAID 1). Each drive is mounted in a caddy that can be hot-swapped
from the front. The caddies are just slightly larger than a 3.5" HDD,
and about an inch deeper.

8 drives in a raid 1 configuration is an incredibly poor use of disk
space.

are you confusing that with a different raid level?


Since I set up the machine, no I am not confused. The drives are paired
to create four virtual drives in RAID 1.

that's not 8 drives in a raid 1 configuration, that's 4 pairs of
drives, each of which is raid 1.


RAID 1 is typically two drives. More than two drives can be used to
provide for hot-standby.

It occurs to me that I should have said "8 hard drives in four RAID 1
pairs", but it never occurred to me that anyone would think that I run
six identical hot-standbys. Mea culpa.


--
Ken Hart

In article , Ken Hart
wrote:

I've got an old Dell PowerEdge 2900 that has 8 hard drives in RAID (I
use RAID 1). Each drive is mounted in a caddy that can be hot-swapped
from the front. The caddies are just slightly larger than a 3.5" HDD,
and about an inch deeper.

8 drives in a raid 1 configuration is an incredibly poor use of disk
space.

are you confusing that with a different raid level?


Since I set up the machine, no I am not confused. The drives are paired
to create four virtual drives in RAID 1.

that's not 8 drives in a raid 1 configuration, that's 4 pairs of
drives, each of which is raid 1.


RAID 1 is typically two drives. More than two drives can be used to
provide for hot-standby.

for a raid 1 with more than two drives, it's much better to configure
it for additional redundancy than hot standbys. in fact, hot standbys
are generally not a good idea.

It occurs to me that I should have said "8 hard drives in four RAID 1
pairs", but it never occurred to me that anyone would think that I run
six identical hot-standbys. Mea culpa.

that would have been clearer.

there are reasons to have a raid 1 with more than two drives, however,
it's not common and i've never seen more than 4.

"Carlos E.R." wrote in message
...

snip

I don't recall having any problems. I'm sure I would remember if I had.


Not the same brand/model. SATA here. Current incumbent is Sharkoon.


Yep, also have a Sharkoon docking station for SATA drives but prefer the
Startech Satdock25u.
They were £6 each when I bought a couple.

-
https://www.startech.com/uk/HDD/Dock...HDD~SATDOCK25U

--
Regards
wasbit