Host4Fun VPS 1 Review - Printable Version

Host4Fun VPS 1 Review - Printable Version

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Pages: 1 2

RE: VPS 1 Review - Littlemaster - 05-11-2021

(05-10-2021, 01:55 AM)fChk Wrote: Good, then can you submit the output of these commands:

Code:
lsblk --output "NAME,KNAME,MODEL,HCTL,SIZE,VENDOR,SUBSYSTEMS" # lshw -class storage -class disk

Code:
# lsblk  --output "NAME,KNAME,MODEL,HCTL,SIZE,VENDOR,SUBSYSTEMS"

lsblk: unknown column: SUBSYSTEMS

Code:
# lsblk  --output "NAME,KNAME,MODEL,HCTL,SIZE,VENDOR"

lsblk:  --output: not a block device

lsblk: NAME,KNAME,MODEL,HCTL,SIZE,VENDOR: not a block device

Code:
# lshw -class storage -class disk

  *-ide

       description: IDE interface

       product: 82371SB PIIX3 IDE [Natoma/Triton II]

       vendor: Intel Corporation

       physical id: 1.1

       bus info: pci@0000:00:01.1

       logical name: scsi0

       version: 00

       width: 32 bits

       clock: 33MHz

       capabilities: ide isa_compat_mode bus_master emulated

       configuration: driver=ata_piix latency=0

       resources: irq:0 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:c640(size=16)

     *-disk

          description: ATA Disk

          product: QEMU HARDDISK

          physical id: 0.0.0

          bus info: scsi@0:0.0.0

          logical name: /dev/sda

          version: 2.5+

          serial: QM00001

          size: 100GiB (107GB)

          capabilities: partitioned partitioned:dos

          configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 signature=000b136f

  *-pnp00:03

       product: PnP device PNP0700

       physical id: 4

       capabilities: pnp

Hope we will reach to a conclusion soon.

RE: VPS 1 Review - fChk - 05-11-2021

(05-11-2021, 12:21 PM)Littlemaster Wrote:
Code:
# lsblk --output "NAME,KNAME,MODEL,HCTL,SIZE,VENDOR,SUBSYSTEMS" lsblk: unknown column: SUBSYSTEMS
Code:
# lsblk --output "NAME,KNAME,MODEL,HCTL,SIZE,VENDOR" lsblk: --output: not a block device lsblk: NAME,KNAME,MODEL,HCTL,SIZE,VENDOR: not a block device

That's weird!.. Normally, you should get something like this:

Code:
[root @ fChk ~]# lsblk --output "NAME,KNAME,MODEL,HCTL,SIZE,VENDOR,SUBSYSTEMS"

NAME               KNAME MODEL            HCTL        SIZE VENDOR   SUBSYSTEMS

sda                sda   QEMU HARDDISK    0:0:0:0     100G ATA      block:scsi:pci

├─sda1             sda1                                 1G          block:scsi:pci

└─sda2             sda2                                99G          block:scsi:pci

  ├─cl_static-root dm-0                              57.9G          block

  └─cl_static-home dm-1                              41.1G          block

sr0                sr0   QEMU DVD-ROM     0:0:1:0    1024M QEMU     block:scsi:pci

Where the block device subsystem is clearly of a 'block :scsi:pci' type.

.. May be you should try:

Code:
lsblk

(05-11-2021, 12:21 PM)Littlemaster Wrote:
Code:
# lshw -class storage -class disk *-ide description: IDE interface product: 82371SB PIIX3 IDE [Natoma/Triton II] vendor: Intel Corporation physical id: 1.1 bus info: pci@0000:00:01.1 logical name: scsi0 version: 00 width: 32 bits clock: 33MHz capabilities: ide isa_compat_mode bus_master emulated configuration: driver=ata_piix latency=0 resources: irq:0 ioport:1f0(size=8) ioport:3f6 ioport:170(size=8) ioport:376 ioport:c640(size=16) *-disk description: ATA Disk product: QEMU HARDDISK physical id: 0.0.0 bus info: scsi@0:0.0.0 logical name: /dev/sda version: 2.5+ serial: QM00001 size: 100GiB (107GB) capabilities: partitioned partitioned:dos configuration: ansiversion=5 logicalsectorsize=512 sectorsize=512 signature=000b136f *-pnp00:03 product: PnP device PNP0700 physical id: 4 capabilities: pnp
Hope we will reach to a conclusion soon.

There you go!.. VPS-1 uses QEMU's emulated IDE interface as its storage controller (ata_piix.) Thus, contrary to what I was assuming, there is no VirtIO for your disk I/O virtualization!!.. It's just plain old IDE emulation!..

In other words, my first argument is no longer valid BUT the second one is still valid!.. As whatever storage is used at the host level there must be some form of RAID setup that can explain why your virtual disk buffered write speed is in ~300 MB/s (assuming the HDD storage type.) In which case, the rotational mode is derived from the RAID controller and not the disk drives per se.

Conclusion:
We're still in the dark :-) As I've already predicted in the first post. But it should be something like this, assuming the existence of a software RAID:
> HDD--SW-RAID--[-QEMU/IDE-Virtual-disk]
OR
> SSD--SW-RAID--[-QEMU/IDE-Virtual-disk]

Doing disk I/O benchmark tests may point to one case or the other but only if that SW-RAID is not too performant!

Having a highly performant RAID setup in the middle -especially HW-RAIDs- tend to blur the difference from a bench-marking perspective.