Home » HITACHI EXPORT TOOL: El amigo invisible

HITACHI EXPORT TOOL: El amigo invisible

Los sistemas de almacenamiento enterprise no suelen facilitar la recolección de datos para medir el rendimiento de los distintos subsistemas a través de protocolos abiertos,  por ejemplo mediante consultas SNMP. Si un sistema necesita ser monitorizado para abordar un problema de rendimiento, realizar un estudio de utilización o la obtención de datos para un plan de capacidad, deberá  adquirir un producto licenciado aparte, como Tuning Manager en el caso de sistemas Hitachi.

 

VSP Inside

-Fig1.Esquema interno de Hitachi VSP-

Para los modelos de cabinas Hitachi 9900V / USP / NSC55 / USP-V / USP-VM / VSP existe una alternativa:  Export Tool – ésta herramienta va incluida en el CD que contiene el microcódigo instalado en la cabina, de forma que cada versión de microcódigo tiene su versión específica-. Se trata de una aplicación java (multiplataforma) que se ejecuta desde la línea de comandos desde un equipo con conectividad LAN con la SVP de la cabina y que obtiene los estadísticas de rendimiento en ficheros con formato CSV. El hecho de que no disponga de una interfaz gráfica, que su configuración no sea trivial, junto con que esté casi escondida entre los CDs de soporte hace que no sea demasiado utilizada por administradores.

Todo lo que se  observa desde Perfomance Monitor – elemento de la herramienta de administración Storage Navigator incluida entre el conjunto de herramientas básicas de gestión (Hitachi Basic Operating System)-, puede ser almacenado  en ficheros csv  mediante Export Tool. Performance Monitor proporciona detalles en profundidad del rendimiento de todos los elementos del sistema, incluyendo discos, volúmenes, procesadores, cache, puertos, etc. Incluso permite monitorizar el estado de copias remotas y locales de Mainframe y Open. Es la herramienta de troubleshooting y análisis esencial para la resolución de problemas de rendimiento en sistemas Hitachi 9900V / USP / NSC55 / USP-V / USP-VM / VSP. Su uso es bajo demanda y no permite monitorizar y generar alertas en modo desatendido.

 

Usando Performance Monitor y Export Tool 

 

El primer paso es habilitar la recolección de estadísticas desde la pestaña de Performance Monitor (PM) en Storage Navigator. PM dispone dos tipos de rangos para recoger y almacenar estadísticas del sistema:

 

– short range: Permite definir un intervalo de entre cada toma de datos (entre 1 y 15 min) y guarda 1440 muestras.

– long range: Recolecta datos al intervalo fijo de 15 min entre cada adquisición y los almacena durante 3 meses.

 

La instalación de Export Tool es tan sencilla como descomprimir un paquete en un directorio. El programa java lee el archivo de configuración “command.txt”. Sobre este fichero se definen los elementos sobre los que se quiere extraer información y el subconjunto de tiempo, si no se quiere disponer de todos los valores almacenados. Además existen otros modificadores para presentar la información comprimida, decidir si se sobreescribe en el directorio de salida, etc.

 

Los tipos de valores se guardan organizados en formato csv son:

 

– Valores relativos : Tasa de utilización del recurso (en %). Obtenidos mediante un cálculo interno. Los archivos con estos datos tienen el prefijo "Phy" (PHYSICAL).

– Valores absolutos : Contienen valores medidos en el recurso durante el intervalo especificado (IO/sec, KB/sec, …)

 

Para los valores relativos existe una regla práctica (publicada en el portal de soporte de HDS) definiendo los umbrales de utilización aconsejados :

 

– Front end CHP utilization should be less than 70%.

– Back end DKP utilization should be less than 50%.

– Write Pending should average less than 30%.

– Array Group utilization should be less than 50%.

– LDEV utilization depends on the response time requirements of the application. To provide good response times, utilization should be below 50%.

 

A partir de aquí pueden definirse alertas sobre elementos según estos umbrales y realizar una redistribución de recursos en el sistema de almacenamiento para equilibrarlos, por ejemplo para un distribución de los puertos de fibra entre los hosts con mayor actividad o distribuir volúmenes en parity groups menos utilizados.

Los valores absolutos permiten representar “los números” de nuestro sistema de almacenamiento: IO/sec, KB/sec y representar gráficamente de forma sencilla el comportamiento de sistemas y aplicaciones a lo largo de un periodo de tiempo, por ejemplo las últimas 24h o la evolución de la carga semanal.

Recoger estos valores de forma periódica permite disponer fácilmente de la evolución del uso del almacenamiento en el tiempo, comparando estadísticas entre meses, años, etc. A partir de aquí, la imaginación y la destreza de cada uno para manejar este tipo de archivos y su representación gráfica o la integración con otras herramientas (splunk, nagios, pnp4nagios, …) marcan el límite.

 

No Responses to “HITACHI EXPORT TOOL: El amigo invisible”

  1. Your way of describing all in this article is in fact good,
    every one be able to without difficulty be aware of it, Thanks a lot.

  2. cults3d.com dice:

    I’m extremely impressed with your writing talents as well as with the layout in your blog.

    Is this a paid subject matter or did you modify
    it your self? Either way keep up the nice high quality writing, it is uncommon to see a
    nice weblog like this one today..

  3. menwiki.men dice:

    This piece of writing is genuinely a pleasant one it helps new
    internet visitors, who are wishing for blogging.

  4. Hey terrific blog! Does running a blog like this take a
    great deal of work? I have virtually no understanding of coding however I was
    hoping to start my own blog soon. Anyway, should you have any ideas or techniques for new blog owners please
    share. I know this is off topic however I simply had to ask.
    Kudos!

  5. Hi there friends, its impressive piece of writing on the topic of teachingand completely explained, keep
    it up all the time.

  6. Highly energetic post, I liked that bit. Will there be a part 2?

  7. Excellent post. Keep writing such kind of information on your blog.
    Im really impressed by it.
    Hey there, You have done a great job. I will definitely digg it and
    personally recommend to my friends. I am confident they’ll be benefited from this site.

  8. I think this is among the most important information for me.
    And i am glad reading your article. But wanna remark on few general things, The web
    site style is wonderful, the articles is really excellent :
    D. Good job, cheers

  9. Thank you for the auspicious writeup. It in reality was a leisure account it.
    Look complex to more delivered agreeable from you!
    However, how could we communicate?

  10. discuss dice:

    First of all I would like to say great blog! I had a quick question which I’d like to ask if
    you don’t mind. I was curious to find out how you center
    yourself and clear your head before writing.

    I’ve had difficulty clearing my thoughts in getting my thoughts out there.
    I truly do enjoy writing but it just seems like the first 10 to 15 minutes are usually lost
    simply just trying to figure out how to begin.
    Any ideas or tips? Thanks!

  11. I was very pleased to uncover this page. I want
    to to thank you for ones time for this fantastic read!!
    I definitely liked every little bit of it and i also have you saved to fav to look
    at new things in your website.

  12. We are a group of volunteers and opening a new scheme in our community.
    Your web site offered us with valuable information to work on. You’ve done an impressive job and our whole community will be thankful to you.

  13. Hello! I know this is kind of off topic but I was wondering which blog platform are you
    using for this website? I’m getting sick and tired of WordPress because I’ve had
    problems with hackers and I’m looking at options for another platform.

    I would be fantastic if you could point me in the direction of a good
    platform.

  14. Heya i’m for the first time here. I came across this board and I
    to find It really useful & it helped me out a lot. I am hoping to
    provide one thing again and aid others like you helped
    me.

  15. imoodle.win dice:

    This is my first time pay a quick visit at here
    and i am in fact happy to read all at alone place.

  16. I got this web site from my buddy who informed me
    on the topic of this website and now this time I am browsing this
    site and reading very informative articles or reviews here.

  17. Hey there, You have done a great job. I’ll definitely digg it
    and personally recommend to my friends. I’m sure they will be
    benefited from this website.

  18. I constantly spent my half an hour to read this weblog’s articles or
    reviews daily along with a mug of coffee.

  19. speedgh.com dice:

    Pretty section of content. I just stumbled upon your weblog
    and in accession capital to claim that I acquire actually
    enjoyed account your blog posts. Any way I
    will be subscribing for your feeds or even I achievement you get
    admission to constantly fast.

  20. I’m more than happy to find this page. I wanted to thank you
    for your time due to this fantastic read!! I definitely
    really liked every part of it and I have you bookmarked to check out new things on your website.

  21. Actually no matter if someone doesn’t be aware of
    afterward its up to other visitors that they
    will assist, so here it occurs.

  22. I am really enjoying the theme/design of your weblog.
    Do you ever run into any web browser compatibility issues?
    A number of my blog readers have complained about
    my website not working correctly in Explorer but looks great in Safari.
    Do you have any advice to help fix this problem?

  23. I am extremely inspired along with your writing skills and also with the
    format in your blog. Is this a paid subject matter or
    did you modify it your self? Either way stay up the nice high
    quality writing, it is rare to look a great blog like this one
    these days..

  24. cults3d.com dice:

    Remarkable! Its in fact awesome piece of writing, I
    have got much clear idea regarding from this article.

  25. Link exchange is nothing else but it is simply placing the other person’s web site link on your
    page at appropriate place and other person will also do similar for you.

  26. Having read this I thought it was really enlightening.
    I appreciate you taking the time and energy to put this short article together.
    I once again find myself spending a lot of time both reading and leaving comments.

    But so what, it was still worthwhile!

  27. This site was… how do I say it? Relevant!!
    Finally I’ve found something that helped me. Thank you!

  28. Hi there to every body, it’s my first visit of this blog; this webpage
    carries remarkable and genuinely excellent stuff
    in favor of visitors.

  29. Hi would you mind sharing which blog platform you’re using?
    I’m going to start my own blog soon but I’m having a tough time selecting between BlogEngine/Wordpress/B2evolution and Drupal.
    The reason I ask is because your design and style seems different then most blogs and I’m looking for something unique.

    P.S My apologies for being off-topic but I had to ask!

  30. help-sp.ru dice:

    I was curious if you ever thought of changing the page layout of
    your blog? Its very well written; I love what youve got to say.
    But maybe you could a little more in the way of content so people
    could connect with it better. Youve got an awful lot of text for only having 1 or 2 images.
    Maybe you could space it out better?

  31. I am not certain where you are getting your
    info, however good topic. I needs to spend some time finding out much
    more or figuring out more. Thank you for great info I was looking for this info
    for my mission.

  32. My spouse and I stumbled over here different page and
    thought I may as well check things out. I like what I see so now
    i’m following you. Look forward to exploring your web page repeatedly.

  33. Hi i am kavin, its my first occasion to commenting anyplace, when i read this post i thought i
    could also create comment due to this sensible paragraph.

  34. Great post but I was wanting to know if you could write a
    litte more on this subject? I’d be very thankful if you could elaborate
    a little bit further. Thanks!

  35. Rayford dice:

    Hi to all, how is everything, I think every one is getting
    more from this web page, and your views are fastidious
    for new people.

  36. Dian dice:

    I do accept as true with all the ideas you’ve presented in your
    post. They are really convincing and can definitely work.
    Nonetheless, the posts are too short for starters.
    May just you please prolong them a bit from next time?
    Thanks for the post.

  37. j.mp dice:

    Howdy! This post couldn’t be written any better!
    Reading through this post reminds me of my good old room mate!
    He always kept chatting about this. I will forward this write-up to him.
    Fairly certain he will have a good read. Thank you for sharing!

  38. asmr a dice:

    This article is actually a nice one it helps new web viewers, who are wishing in favor
    of blogging.

  39. Jeremiah dice:

    Hola! I’ve been following your website for a long time
    now and finally got the bravery to go ahead and give you a shout out
    from Houston Texas! Just wanted to say keep up the good work!

  40. MatthewSkacy dice:

    Hello! infected scab treatment

  41. asmr their dice:

    It’s going to be end of mine day, but before end I
    am reading this great article to increase
    my knowledge.

  42. Slots dice:

    Hey! Quick question that’s completely off topic.
    Do you knokw how to make ypur site mobile friendly?
    My website looks weird when browsing from my iphone 4.
    I’m trying to find a template oor plugin that mighbt
    bbe able to fix this issue. If yyou have any recommendations, please share.
    Thanks!

  43. Чтобы получать прибыль и иметь посещаемость на сайтах – нужно заказывать продвижение сайта.

    Выбирать исполнителя нужно тщательно и лучше опираться на
    его позиции и его портфолио.

    Заказать комплексное продвижение сайта просто – а получить результат сложно.

    Выбрав исполнителями нас, вы получаете профессиональные услуги по продвижению
    сайта.

  44. В этой статье я собрал все промокоды Беру ру
    и купоны, которые будут действовать в августе — сентябре 2019 года.
    Они позволят вам приобрести товары максимально выгодно.
    Получите промокод беру.

  45. dosial.com dice:

    This is a very ood tiρ partіcularly to tһose fresh tⲟ thе blogosphere.
    Βrief Ьut vеry accurate infoгmation… Manny tһanks for sharing this one.
    Ꭺ must rеad post!

  46. stellar dice:

    It’s difficult tο find knowledgeable people οn tһis subject, һowever, youu sound lie
    үou know what you’re talking about! Tһanks

  47. I ɑm genuinely thankful to thе ownr of this web page whߋ has shared tһis grеat
    paragralh аt һere.

  48. Hi my loved one! I wish to say that this post is amazing, nice written and include approximately all significant infos. I’d like to peer more posts like this.

  49. webhosting dice:

    Нello my family member! I wish to say that this post is amazing,
    niсe written and include almost alll sinificant infos.
    I would like to peer extra postѕ like this .

Deja una respuesta

Tu dirección de correo electrónico no será publicada. Los campos obligatorios están marcados con *