Date: Thu, 15 Jan 2009 16:55:44 +0100 From: Sossi Andrej <asossi@dotcom.ts.it> To: Danny Braniss <danny@cs.huji.ac.il> Cc: freebsd-scsi@freebsd.org Subject: Re: ISCSI slow to read from DELL MD3000i Message-ID: <496F5C80.9030406@dotcom.ts.it> In-Reply-To: <E1LN6MK-000Nc1-3C@kabab.cs.huji.ac.il> References: <E1LN6MK-000Nc1-3C@kabab.cs.huji.ac.il>
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Danny Braniss write: > [...] > >>>> In this week I did many tests on ISCSI and found another problem with >>>> slow writing. I created 7 virtual disk on my NAS server. The first 4 >>>> disks (/dev/da0 - /dev/da3) work fine, the other 3 (/dev/da4 - /dev/da6) >>>> are slow. >>>> I found this depends from parameter ISCSI_MAX_LUNS defined in file >>>> iscsi.h, set 4. I tried to increase this value, but with all values >>>> higher of 4 the initiator prints error: >>>> iscontrol[602]: ISCSIGETCAM failed: 25 >>>> >>>> > arg, I will fix this in the next release, but for now, recompile iscontrol too. > > [...] > > danny > I forgot to compile iscontrol. Sorry. Now it works fine. R/W speed is now ~48Mb/s on disks da0-3 and ~32Mb/s on disks da4-6. I set ISCSI_MAX_LUNS at value 16. Speed 32Mb/s is good for my job, but... why is there this difference? Thanks for another reply. -- Sossi Andrej ------------------------- DotCom Information technology Via Biancospino, 9 34151 - Opicina (TS) Italy tel: +39 040 2158191 fax: +39 040 0641954 E-mail: asossi@dotcom.ts.it ---------------------------- Ai sensi del D.lgs n. 196 del 30.06.03 (Codice Privacy) si precisa che le informazioni contenute in questo messaggio sono riservate e ad uso esclusivo del destinatario. Qualora il messaggio in parola Le fosse pervenuto per errore, La preghiamo di eliminarlo senza copiarlo e di non inoltrarlo a terzi, dandocene gentilmente comunicazione. Grazie This message, for the D.lgs n. 196 / 30.06.03 (Privacy Code), may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation.
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