Question about QLogic FC Target (QLE2462 vs QLE2562)

[최재훈]

Hi!
I want to change QLE2462 2port 4Gb FC Target to QLE2562 2port 8Gb FC Target.

I'm using ESOS 1.3.3_z custom build.

I'm test with QLE2562 but some stability was bad then rollback to QLE2462.

Here is a questions.

Q1. When I build a ESOS, ./configure with QLogic option is mandatory?
Current build was made with default option - Just only --enable_zfs.

Q2. What's the diffrence in default build option and QLogic option?

BR,

Jae-Hoon Choi

[Marc Smith]

On Sun, Jan 7, 2018 at 6:16 AM, 최재훈 <inbusine...@gmail.com> wrote:
> Hi!
> I want to change QLE2462 2port 4Gb FC Target to QLE2562 2port 8Gb FC Target.
>
> I'm using ESOS 1.3.3_z custom build.
>
> I'm test with QLE2562 but some stability was bad then rollback to QLE2462.

What does that mean exactly? You had stability problems and attributed
it solely to using a QLE2562 vs. a QLE2462? What kind of problems did
you have?

>
> Here is a questions.
>
> Q1. When I build a ESOS, ./configure with QLogic option is mandatory?
> Current build was made with default option - Just only --enable_zfs.
>
> Q2. What's the diffrence in default build option and QLogic option?

The '--enable-qla' build option for enabling the the QLogic-provided
target driver is what you're referring to I assume? If so, some years
back, QLogic developed a target driver for SCST (for their FC HBA's)
softly called the "Git QLogic driver". This driver was a bit closer to
their mainline initiator driver. There was quite a bit of stability
issues around this driver back then, so at that time in ESOS, we
elected to keep the default QLogic SCST in-tree target driver and
found it to be much more stable (the SCST developers and community did
as well).

So you can use this option to use the QLogic-provided target driver,
although I would not recommend it. Its still a dated driver without
nearly as much tested as the SCST-provided driver, and recently the
QLogic Git repo has been unavailable, so no one was fetched new
sources for this driver in quite some time.

Hope this helps.

--Marc



>
> BR,
>
> Jae-Hoon Choi
>
> --
> You received this message because you are subscribed to the Google Groups
> "esos-users" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to esos-users+...@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.

[최재훈]

Hi! Again!

About Q1.

When multiple VM svMotion execute, time-out error occurred.

I'm test again that include double checking my FCoE hardware configurations then eMail again...:)

About Q2.

Your answer is very clear that leads my question gone away...:)

Regards,

Jae-Hoon Choi

P.S

During test, when I make a LUN device with same name like below SCST create same device name like eui.xxxxxxxx was appeared on my ESXi 6.5 host.

Is there any solution?

(example)

zfs create -s -b 128KB -s -o compression=lz4 -o dedup=off -V 900g Storage/ESOS01_LUN11

scstadmin -open_dev LUN11 -handler vdisk_blockio -attributes filename=/dev/Storage/ESOS01_LUN11,thin_provisioned,nv_cache=1

echo SCST_BIO > /sys/kernel/scst_tgt/devices/LUN11/prod_id

> email to esos-users+unsubscribe@googlegroups.com.

> For more options, visit https://groups.google.com/d/optout.

--
You received this message because you are subscribed to a topic in the Google Groups "esos-users" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/esos-users/qNzoEbXlpks/unsubscribe.
To unsubscribe from this group and all its topics, send an email to esos-users+unsubscribe@googlegroups.com.

[최재훈]

Hi!

Here is a good news...:)

After change to OM3 optical cable, all works successfully!

Maybe there are some problems in old OM2 optical cables.

I found some error counts on Brocade8000B FCoE switches.

I changed cables on FC port then all problems were gone ... :)

Thank you for your quick and exact support!

Regards,

Jae-Hoon Choi

2018년 1월 8일 (월) 01:48, Marc Smith <marc....@parodyne.com>님이 작성:

You received this message because you are subscribed to a topic in the Google Groups "esos-users" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/esos-users/qNzoEbXlpks/unsubscribe.
To unsubscribe from this group and all its topics, send an email to esos-users+...@googlegroups.com.