Re: [9fans] dd(1) takes very long

[Aleksandar Kuktin <ak@triklod.rs>]

[-- Attachment #1.1: Type: text/plain, Size: 925 bytes --]

>On Fri, 1 Mar 2024 09:24:15 +0100
>Marco Feichtinger <marco@germteig.com> wrote:
>
> The mirrored disks are 480GB ssds.
> 
> The copying with dd(1) took ~16 hours. 
> Is that normal?
> 
> -marco

Hi, a long-time lurker here. If 480 GiB are transferred over 16 hours,
the implied transfer rate is 70 Mbps. If 480 GB are transferred, the
implied rate is 66 Mbps. Both transfer rates are consistent with network
interfaces that are in common use (100 Mbps Ethernet). They may or may
not be consistent with internal system interfaces (SSDs are supposed to
have much greater bandwidth). If both disks live in the same computer
and the computer isn't a SBC bitty box, the transfer rate is weirdly
low.

-- 
Svi moji e-mailovi su kriptografski potpisani. Proverite ih.
All of my e-mails are cryptographically signed. Verify them.
--
You don't need an AI for a robot uprising.
Humans will do just fine.
--

[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

[-- Attachment #2: Type: text/plain, Size: 228 bytes --]


------------------------------------------
9fans: 9fans
Permalink: https://9fans.topicbox.com/groups/9fans/T0fd6444acb9c7811-M9dd4ba41d4b92276d12a1f1f
Delivery options: https://9fans.topicbox.com/groups/9fans/subscription