For me the answer for this is: use what you need. For example consider
raid.
On my desktop I have an mdadm raid level mirror. It is only a desktop used
for some task at home (testing, coding...). Why buy a valid controller like
areca or (as suggested on a discussion, maybe on reddit) an HBA to make a
simple raid? I don't need an HBA or an high value controller on my
i7-2600k. Then the consideration should be "if you need high disk I/O
perfomances and a lot of space buy the right hardware."
For example there are a great number of small offices that need of little
nas. There are cheap products that can perform well this operation but
these are not valid hardware. I'm not a fan of this solution types but
many technician install them because the committent says "oh please, drop
the price". If for a small office, a technician must get a 1000/1500 $ for
a server to serve as nas, he will not work. I have seen this type of
product on lan with 120 hosts with a deadly performances.
Il 28/ott/2016 19:15, "Valeri Galtsev" <galtsev@xxxxxxxxxxxxxxxxx> ha
scritto:
>
> On Fri, October 28, 2016 11:50 am, Alessandro Baggi wrote:
> > Il 28/10/2016 16:28, Valeri Galtsev ha scritto:
> >>
> >> On Fri, October 28, 2016 2:42 am, Alessandro Baggi wrote:
> >>> Il 27/10/2016 19:38, Yamaban ha scritto:
> >>>> For my personal use I would replace that Drive asap.
> >>>> - There is no warranty for it anymore (time since buy)
> >>>> - You can't buy it new anymore (discontinued)
> >>>> - There are more reliable drives available.
> >>>>
> >>>> I'd go for a Samsung Evo 850, that will give you five years of
> >>>> warranty.
> >>>>
> >>>> But, it's your drive, you make the decissions.
> >>>>
> >>>> - Yamaban.
> >>>
> >>> Thank you for your suggestion.
> >>>
> >>> What do you think about Corsair Neutron XTi 240 MLC?
> >>>
> >>
> >> Amazing. He suggested you definitely reliable drive (Samsung). Reliable
> >> in
> >> my boot too. You ask his opinion about yet another Corsair. One by
> >> Corsair
> >> failed on you already. So, you should have better knowledge about
> >> Corsair's SSD reliability, right?
> >>
> >> Sorry to sound sour, it just amuses me how people keep buying things
> >> made
> >> by the same company whose products already failed on them. This is what
> >> creates the problem: keeps companies manufacturing bad hardware exist.
> >>
> >> Valeri
> >>
> >> ++++++++++++++++++++++++++++++++++++++++
> >> Valeri Galtsev
> >> Sr System Administrator
> >> Department of Astronomy and Astrophysics
> >> Kavli Institute for Cosmological Physics
> >> University of Chicago
> >> Phone: 773-702-4247
> >> ++++++++++++++++++++++++++++++++++++++++
> >> _______________________________________________
> >> CentOS mailing list
> >> CentOS@xxxxxxxxxx
> >> https://lists.centos.org/mailman/listinfo/centos
> >>
> >
> > Sorry, but my 2 ssds corsair does not report error and works fine, with
> > good performances and without realloc. These disks are not failed. Yes,
> > they are failing but these are old driver and this is a desktop under
> > raid. Consider that these drive are 5 years old, for me this is not bad
> > ssd brand, there are best brand but corsair is not too bad.
> >
> > Now, Yamaban had suggested samsung because this is the best choice. This
> > does not exclude that there are other products (that can be less
> > reliable and less performant at lower cost) that for my case are good
> > enough. Corsair neutron has also 5 years of warrenty.
> >
> > > Sorry to sound sour, it just amuses me how people keep buying things
> > made
> > > by the same company whose products already failed on them. This is
> what
> > > creates the problem: keeps companies manufacturing bad hardware exist.
> > >
> >
> > If you are AMD user and your old AMD cpu died, You think that AMD must
> > burn due to a cpu failure? Great.
> > I'm with you in the case where you buy a disk and after 3/6 months it
> > fails (and this can happen also with very good brand) and this is not
> > the case. Backblaze must burn all brand because many disks fails....
> >
> > Now about bad hardware manufacturing companies it's another problem.
> > These companies point to low cost consumer, due the fact that not anyone
> > can get the best hardware due to money. An example? Corsair LE 480 GB
> > (100$) vs Samsung SSD Serie 850 Pro 512GB (260$). 850 Pro is better,
> > but more expensive, and Corsair LE has 3 year of warrenty. Maybe an user
> > can spend his money for a vga or a better cpu. These bad companies
> > permit some users to get hw for less money without a great expecation
> > for cheapest use case and their ability to pay.
>
> Yes, indeed, I'm with you on that. Market is driven by low budget
> (ignorant - not to offend, but to just qualify in insight into hardware)
> consumer. Which indeed leads to "fake raid" chips (aka "software" raid),
> and many other bad things. I sometimes have to deal with what students
> have ordered themselves. Hence excessive attitude. As they order before
> they hear from me: "pricegrabber is an enemy in choosing reliable
> hardware". Then all leads to downtime, someone has to spend time on
> repairing the darn thing. Whereas, if one pays mere 15% more and gets good
> hardware, future losses (including human time which is very expensive) can
> be avoided. Alas, SSD difference in hand is larger that 15%, hence
> probably nobody will dare to help with advice. If there is good advice
> that is. I for one did go with Samsung SSD...
>
> Valeri
>
> >
> > Than if these cheap companies must not exist, the user must not use a
> > new technology (at lower cost)? The IT gap.
> >
> > Sorry, my (m.)2 cents.
> >
> >
> >
> > _______________________________________________
> > CentOS mailing list
> > CentOS@xxxxxxxxxx
> > https://lists.centos.org/mailman/listinfo/centos
> >
>
>
> ++++++++++++++++++++++++++++++++++++++++
> Valeri Galtsev
> Sr System Administrator
> Department of Astronomy and Astrophysics
> Kavli Institute for Cosmological Physics
> University of Chicago
> Phone: 773-702-4247
> ++++++++++++++++++++++++++++++++++++++++
> _______________________________________________
> CentOS mailing list
> CentOS@xxxxxxxxxx
> https://lists.centos.org/mailman/listinfo/centos
>
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
https://lists.centos.org/mailman/listinfo/centos
